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Finding the Fourth Proportional to 529,869.20, 794,803.80 and 471,808.40

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Solution

The fourth proportional to 529,869.20, 794,803.80 and 471,808.40 is: 707,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,869.20 : 794,803.80 = 471,808.40 : x
  2. Step 2: Convert to fraction form
    529,869.20/794,803.80 = 471,808.40/x
  3. Step 3: Cross multiply
    529,869.20x = 794,803.80 × 471,808.40
  4. Step 4: Simplify right side
    529,869.20x = 374,995,109,191.92
  5. Step 5: Solve for x
    x = 374,995,109,191.92/529,869.20
  6. Step 6: Final answer
    x = 707,712.60

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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.