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Finding the Fourth Proportional to 307,225.92, 424,164.96 and 235,470.72

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Solution

The fourth proportional to 307,225.92, 424,164.96 and 235,470.72 is: 325,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,225.92 : 424,164.96 = 235,470.72 : x
  2. Step 2: Convert to fraction form
    307,225.92/424,164.96 = 235,470.72/x
  3. Step 3: Cross multiply
    307,225.92x = 424,164.96 × 235,470.72
  4. Step 4: Simplify right side
    307,225.92x = 99,878,428,529.97
  5. Step 5: Solve for x
    x = 99,878,428,529.97/307,225.92
  6. Step 6: Final answer
    x = 325,097.66

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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.