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Finding the Fourth Proportional to 369,140.30, 551,687.42 and 269,510.30

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Solution

The fourth proportional to 369,140.30, 551,687.42 and 269,510.30 is: 402,788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,140.30 : 551,687.42 = 269,510.30 : x
  2. Step 2: Convert to fraction form
    369,140.30/551,687.42 = 269,510.30/x
  3. Step 3: Cross multiply
    369,140.30x = 551,687.42 × 269,510.30
  4. Step 4: Simplify right side
    369,140.30x = 148,685,442,070.43
  5. Step 5: Solve for x
    x = 148,685,442,070.43/369,140.30
  6. Step 6: Final answer
    x = 402,788.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.