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Finding the Fourth Proportional to 429,230.52, 644,477.76 and 240,061.50

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Solution

The fourth proportional to 429,230.52, 644,477.76 and 240,061.50 is: 360,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,230.52 : 644,477.76 = 240,061.50 : x
  2. Step 2: Convert to fraction form
    429,230.52/644,477.76 = 240,061.50/x
  3. Step 3: Cross multiply
    429,230.52x = 644,477.76 × 240,061.50
  4. Step 4: Simplify right side
    429,230.52x = 154,714,297,782.24
  5. Step 5: Solve for x
    x = 154,714,297,782.24/429,230.52
  6. Step 6: Final answer
    x = 360,445.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.