Home / 779,157.90-1,169,106.92-539,640.39

Finding the Fourth Proportional to 779,157.90, 1,169,106.92 and 539,640.39

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Solution

The fourth proportional to 779,157.90, 1,169,106.92 and 539,640.39 is: 809,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,157.90 : 1,169,106.92 = 539,640.39 : x
  2. Step 2: Convert to fraction form
    779,157.90/1,169,106.92 = 539,640.39/x
  3. Step 3: Cross multiply
    779,157.90x = 1,169,106.92 × 539,640.39
  4. Step 4: Simplify right side
    779,157.90x = 630,897,317,970.10
  5. Step 5: Solve for x
    x = 630,897,317,970.10/779,157.90
  6. Step 6: Final answer
    x = 809,716.90

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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.