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Finding the Fourth Proportional to 377,398.59, 520,798.17 and 205,312.14

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Solution

The fourth proportional to 377,398.59, 520,798.17 and 205,312.14 is: 283,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,398.59 : 520,798.17 = 205,312.14 : x
  2. Step 2: Convert to fraction form
    377,398.59/520,798.17 = 205,312.14/x
  3. Step 3: Cross multiply
    377,398.59x = 520,798.17 × 205,312.14
  4. Step 4: Simplify right side
    377,398.59x = 106,926,189,025.45
  5. Step 5: Solve for x
    x = 106,926,189,025.45/377,398.59
  6. Step 6: Final answer
    x = 283,324.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.