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Finding the Fourth Proportional to 532,947.60, 799,421.40 and 354,877.20

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Solution

The fourth proportional to 532,947.60, 799,421.40 and 354,877.20 is: 532,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,947.60 : 799,421.40 = 354,877.20 : x
  2. Step 2: Convert to fraction form
    532,947.60/799,421.40 = 354,877.20/x
  3. Step 3: Cross multiply
    532,947.60x = 799,421.40 × 354,877.20
  4. Step 4: Simplify right side
    532,947.60x = 283,696,428,052.08
  5. Step 5: Solve for x
    x = 283,696,428,052.08/532,947.60
  6. Step 6: Final answer
    x = 532,315.80

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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.