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Finding the Fourth Proportional to 472,760.40, 652,554.90 and 291,529.20

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Solution

The fourth proportional to 472,760.40, 652,554.90 and 291,529.20 is: 402,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,760.40 : 652,554.90 = 291,529.20 : x
  2. Step 2: Convert to fraction form
    472,760.40/652,554.90 = 291,529.20/x
  3. Step 3: Cross multiply
    472,760.40x = 652,554.90 × 291,529.20
  4. Step 4: Simplify right side
    472,760.40x = 190,238,807,953.08
  5. Step 5: Solve for x
    x = 190,238,807,953.08/472,760.40
  6. Step 6: Final answer
    x = 402,400.05

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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.