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Finding the Fourth Proportional to 358,416.28, 537,248.94 and 133,686.28

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Solution

The fourth proportional to 358,416.28, 537,248.94 and 133,686.28 is: 200,389.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,416.28 : 537,248.94 = 133,686.28 : x
  2. Step 2: Convert to fraction form
    358,416.28/537,248.94 = 133,686.28/x
  3. Step 3: Cross multiply
    358,416.28x = 537,248.94 × 133,686.28
  4. Step 4: Simplify right side
    358,416.28x = 71,822,812,222.54
  5. Step 5: Solve for x
    x = 71,822,812,222.54/358,416.28
  6. Step 6: Final answer
    x = 200,389.37

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1.5x scale

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.