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Finding the Fourth Proportional to 527,208.60, 790,812.90 and 502,714.20

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Solution

The fourth proportional to 527,208.60, 790,812.90 and 502,714.20 is: 754,071.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,208.60 : 790,812.90 = 502,714.20 : x
  2. Step 2: Convert to fraction form
    527,208.60/790,812.90 = 502,714.20/x
  3. Step 3: Cross multiply
    527,208.60x = 790,812.90 × 502,714.20
  4. Step 4: Simplify right side
    527,208.60x = 397,552,874,373.18
  5. Step 5: Solve for x
    x = 397,552,874,373.18/527,208.60
  6. Step 6: Final answer
    x = 754,071.30

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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.