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Finding the Fourth Proportional to 588,981.40, 883,472.10 and 402,357.40

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Solution

The fourth proportional to 588,981.40, 883,472.10 and 402,357.40 is: 603,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,981.40 : 883,472.10 = 402,357.40 : x
  2. Step 2: Convert to fraction form
    588,981.40/883,472.10 = 402,357.40/x
  3. Step 3: Cross multiply
    588,981.40x = 883,472.10 × 402,357.40
  4. Step 4: Simplify right side
    588,981.40x = 355,471,537,128.54
  5. Step 5: Solve for x
    x = 355,471,537,128.54/588,981.40
  6. Step 6: Final answer
    x = 603,536.10

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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.