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Finding the Fourth Proportional to 346,715.90, 520,073.85 and 97,397.90

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Solution

The fourth proportional to 346,715.90, 520,073.85 and 97,397.90 is: 146,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,715.90 : 520,073.85 = 97,397.90 : x
  2. Step 2: Convert to fraction form
    346,715.90/520,073.85 = 97,397.90/x
  3. Step 3: Cross multiply
    346,715.90x = 520,073.85 × 97,397.90
  4. Step 4: Simplify right side
    346,715.90x = 50,654,100,834.92
  5. Step 5: Solve for x
    x = 50,654,100,834.92/346,715.90
  6. Step 6: Final answer
    x = 146,096.85

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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.