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Finding the Fourth Proportional to 647,045.40, 970,568.10 and 332,117.40

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Solution

The fourth proportional to 647,045.40, 970,568.10 and 332,117.40 is: 498,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,045.40 : 970,568.10 = 332,117.40 : x
  2. Step 2: Convert to fraction form
    647,045.40/970,568.10 = 332,117.40/x
  3. Step 3: Cross multiply
    647,045.40x = 970,568.10 × 332,117.40
  4. Step 4: Simplify right side
    647,045.40x = 322,342,553,894.94
  5. Step 5: Solve for x
    x = 322,342,553,894.94/647,045.40
  6. Step 6: Final answer
    x = 498,176.10

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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.