Home / 860,177.40-1,290,266.10-650,225.40

Finding the Fourth Proportional to 860,177.40, 1,290,266.10 and 650,225.40

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Solution

The fourth proportional to 860,177.40, 1,290,266.10 and 650,225.40 is: 975,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,177.40 : 1,290,266.10 = 650,225.40 : x
  2. Step 2: Convert to fraction form
    860,177.40/1,290,266.10 = 650,225.40/x
  3. Step 3: Cross multiply
    860,177.40x = 1,290,266.10 × 650,225.40
  4. Step 4: Simplify right side
    860,177.40x = 838,963,790,978.94
  5. Step 5: Solve for x
    x = 838,963,790,978.94/860,177.40
  6. Step 6: Final answer
    x = 975,338.10

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Half scale
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Double scale
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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.