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Finding the Fourth Proportional to 578,777.40, 868,166.10 and 410,815.80

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Solution

The fourth proportional to 578,777.40, 868,166.10 and 410,815.80 is: 616,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,777.40 : 868,166.10 = 410,815.80 : x
  2. Step 2: Convert to fraction form
    578,777.40/868,166.10 = 410,815.80/x
  3. Step 3: Cross multiply
    578,777.40x = 868,166.10 × 410,815.80
  4. Step 4: Simplify right side
    578,777.40x = 356,656,350,904.38
  5. Step 5: Solve for x
    x = 356,656,350,904.38/578,777.40
  6. Step 6: Final answer
    x = 616,223.70

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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.