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Finding the Fourth Proportional to 293,640.70, 440,461.05 and 291,567.10

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Solution

The fourth proportional to 293,640.70, 440,461.05 and 291,567.10 is: 437,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,640.70 : 440,461.05 = 291,567.10 : x
  2. Step 2: Convert to fraction form
    293,640.70/440,461.05 = 291,567.10/x
  3. Step 3: Cross multiply
    293,640.70x = 440,461.05 × 291,567.10
  4. Step 4: Simplify right side
    293,640.70x = 128,423,951,011.46
  5. Step 5: Solve for x
    x = 128,423,951,011.46/293,640.70
  6. Step 6: Final answer
    x = 437,350.65

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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.