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Finding the Fourth Proportional to 588,909.40, 883,364.10 and 402,285.40

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Solution

The fourth proportional to 588,909.40, 883,364.10 and 402,285.40 is: 603,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,909.40 : 883,364.10 = 402,285.40 : x
  2. Step 2: Convert to fraction form
    588,909.40/883,364.10 = 402,285.40/x
  3. Step 3: Cross multiply
    588,909.40x = 883,364.10 × 402,285.40
  4. Step 4: Simplify right side
    588,909.40x = 355,364,480,314.14
  5. Step 5: Solve for x
    x = 355,364,480,314.14/588,909.40
  6. Step 6: Final answer
    x = 603,428.10

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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.