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Finding the Fourth Proportional to 579,423.80, 868,098.90 and 473,670.20

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Solution

The fourth proportional to 579,423.80, 868,098.90 and 473,670.20 is: 709,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,423.80 : 868,098.90 = 473,670.20 : x
  2. Step 2: Convert to fraction form
    579,423.80/868,098.90 = 473,670.20/x
  3. Step 3: Cross multiply
    579,423.80x = 868,098.90 × 473,670.20
  4. Step 4: Simplify right side
    579,423.80x = 411,192,579,582.78
  5. Step 5: Solve for x
    x = 411,192,579,582.78/579,423.80
  6. Step 6: Final answer
    x = 709,657.73

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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.