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Finding the Fourth Proportional to 535,061.20, 802,591.80 and 477,000.40

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Solution

The fourth proportional to 535,061.20, 802,591.80 and 477,000.40 is: 715,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,061.20 : 802,591.80 = 477,000.40 : x
  2. Step 2: Convert to fraction form
    535,061.20/802,591.80 = 477,000.40/x
  3. Step 3: Cross multiply
    535,061.20x = 802,591.80 × 477,000.40
  4. Step 4: Simplify right side
    535,061.20x = 382,836,609,636.72
  5. Step 5: Solve for x
    x = 382,836,609,636.72/535,061.20
  6. Step 6: Final answer
    x = 715,500.60

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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.