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Finding the Fourth Proportional to 572,572.80, 858,859.20 and 559,450.80

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Solution

The fourth proportional to 572,572.80, 858,859.20 and 559,450.80 is: 839,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,572.80 : 858,859.20 = 559,450.80 : x
  2. Step 2: Convert to fraction form
    572,572.80/858,859.20 = 559,450.80/x
  3. Step 3: Cross multiply
    572,572.80x = 858,859.20 × 559,450.80
  4. Step 4: Simplify right side
    572,572.80x = 480,489,466,527.36
  5. Step 5: Solve for x
    x = 480,489,466,527.36/572,572.80
  6. Step 6: Final answer
    x = 839,176.20

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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.