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Finding the Fourth Proportional to 531,465.05, 732,970.56 and 449,082.64

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Solution

The fourth proportional to 531,465.05, 732,970.56 and 449,082.64 is: 619,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,465.05 : 732,970.56 = 449,082.64 : x
  2. Step 2: Convert to fraction form
    531,465.05/732,970.56 = 449,082.64/x
  3. Step 3: Cross multiply
    531,465.05x = 732,970.56 × 449,082.64
  4. Step 4: Simplify right side
    531,465.05x = 329,164,350,078.30
  5. Step 5: Solve for x
    x = 329,164,350,078.30/531,465.05
  6. Step 6: Final answer
    x = 619,352.77

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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.