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Finding the Fourth Proportional to 532,726.16, 735,179.76 and 291,031.20

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Solution

The fourth proportional to 532,726.16, 735,179.76 and 291,031.20 is: 401,632.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,726.16 : 735,179.76 = 291,031.20 : x
  2. Step 2: Convert to fraction form
    532,726.16/735,179.76 = 291,031.20/x
  3. Step 3: Cross multiply
    532,726.16x = 735,179.76 × 291,031.20
  4. Step 4: Simplify right side
    532,726.16x = 213,960,247,768.51
  5. Step 5: Solve for x
    x = 213,960,247,768.51/532,726.16
  6. Step 6: Final answer
    x = 401,632.71

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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.