Home / 868,892,442.60-1,303,338,663.90-519,700,276.20

Finding the Fourth Proportional to 868,892,442.60, 1,303,338,663.90 and 519,700,276.20

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Solution

The fourth proportional to 868,892,442.60, 1,303,338,663.90 and 519,700,276.20 is: 779,550,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,892,442.60 : 1,303,338,663.90 = 519,700,276.20 : x
  2. Step 2: Convert to fraction form
    868,892,442.60/1,303,338,663.90 = 519,700,276.20/x
  3. Step 3: Cross multiply
    868,892,442.60x = 1,303,338,663.90 × 519,700,276.20
  4. Step 4: Simplify right side
    868,892,442.60x = 677,345,463,610,968,960
  5. Step 5: Solve for x
    x = 677,345,463,610,968,960/868,892,442.60
  6. Step 6: Final answer
    x = 779,550,414.30

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Double scale
Find fourth proportional to 868,892,443.60, 1,303,338,665.40 and 519,700,277.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.