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Finding the Fourth Proportional to 369,140.05, 551,687.05 and 269,510.05

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Solution

The fourth proportional to 369,140.05, 551,687.05 and 269,510.05 is: 402,788.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,140.05 : 551,687.05 = 269,510.05 : x
  2. Step 2: Convert to fraction form
    369,140.05/551,687.05 = 269,510.05/x
  3. Step 3: Cross multiply
    369,140.05x = 551,687.05 × 269,510.05
  4. Step 4: Simplify right side
    369,140.05x = 148,685,204,429.85
  5. Step 5: Solve for x
    x = 148,685,204,429.85/369,140.05
  6. Step 6: Final answer
    x = 402,788.06

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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.