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Finding the Fourth Proportional to 637,511.60, 956,267.40 and 371,572.40

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Solution

The fourth proportional to 637,511.60, 956,267.40 and 371,572.40 is: 557,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,511.60 : 956,267.40 = 371,572.40 : x
  2. Step 2: Convert to fraction form
    637,511.60/956,267.40 = 371,572.40/x
  3. Step 3: Cross multiply
    637,511.60x = 956,267.40 × 371,572.40
  4. Step 4: Simplify right side
    637,511.60x = 355,322,572,859.76
  5. Step 5: Solve for x
    x = 355,322,572,859.76/637,511.60
  6. Step 6: Final answer
    x = 557,358.60

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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.