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Finding the Fourth Proportional to 572,561.20, 802,691.60 and 572,561.20

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Solution

The fourth proportional to 572,561.20, 802,691.60 and 572,561.20 is: 802,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,561.20 : 802,691.60 = 572,561.20 : x
  2. Step 2: Convert to fraction form
    572,561.20/802,691.60 = 572,561.20/x
  3. Step 3: Cross multiply
    572,561.20x = 802,691.60 × 572,561.20
  4. Step 4: Simplify right side
    572,561.20x = 459,590,065,725.92
  5. Step 5: Solve for x
    x = 459,590,065,725.92/572,561.20
  6. Step 6: Final answer
    x = 802,691.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.