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Finding the Fourth Proportional to 553,025.05, 762,767.08 and 417,064.72

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Solution

The fourth proportional to 553,025.05, 762,767.08 and 417,064.72 is: 575,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,025.05 : 762,767.08 = 417,064.72 : x
  2. Step 2: Convert to fraction form
    553,025.05/762,767.08 = 417,064.72/x
  3. Step 3: Cross multiply
    553,025.05x = 762,767.08 × 417,064.72
  4. Step 4: Simplify right side
    553,025.05x = 318,123,238,645.42
  5. Step 5: Solve for x
    x = 318,123,238,645.42/553,025.05
  6. Step 6: Final answer
    x = 575,242.01

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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.