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Finding the Fourth Proportional to 531,065.82, 732,861.54 and 289,350.13

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Solution

The fourth proportional to 531,065.82, 732,861.54 and 289,350.13 is: 399,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,065.82 : 732,861.54 = 289,350.13 : x
  2. Step 2: Convert to fraction form
    531,065.82/732,861.54 = 289,350.13/x
  3. Step 3: Cross multiply
    531,065.82x = 732,861.54 × 289,350.13
  4. Step 4: Simplify right side
    531,065.82x = 212,053,581,412.96
  5. Step 5: Solve for x
    x = 212,053,581,412.96/531,065.82
  6. Step 6: Final answer
    x = 399,298.11

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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.