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Finding the Fourth Proportional to 424,867.50, 586,309.86 and 243,574.92

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Solution

The fourth proportional to 424,867.50, 586,309.86 and 243,574.92 is: 336,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,867.50 : 586,309.86 = 243,574.92 : x
  2. Step 2: Convert to fraction form
    424,867.50/586,309.86 = 243,574.92/x
  3. Step 3: Cross multiply
    424,867.50x = 586,309.86 × 243,574.92
  4. Step 4: Simplify right side
    424,867.50x = 142,810,377,244.71
  5. Step 5: Solve for x
    x = 142,810,377,244.71/424,867.50
  6. Step 6: Final answer
    x = 336,129.21

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1.5x scale

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.