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Finding the Fourth Proportional to 531,066.39, 732,862.32 and 289,350.70

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Solution

The fourth proportional to 531,066.39, 732,862.32 and 289,350.70 is: 399,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,066.39 : 732,862.32 = 289,350.70 : x
  2. Step 2: Convert to fraction form
    531,066.39/732,862.32 = 289,350.70/x
  3. Step 3: Cross multiply
    531,066.39x = 732,862.32 × 289,350.70
  4. Step 4: Simplify right side
    531,066.39x = 212,054,222,378.40
  5. Step 5: Solve for x
    x = 212,054,222,378.40/531,066.39
  6. Step 6: Final answer
    x = 399,298.90

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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.