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Finding the Fourth Proportional to 457,425.74, 631,251.23 and 253,480.07

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Solution

The fourth proportional to 457,425.74, 631,251.23 and 253,480.07 is: 349,804.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,425.74 : 631,251.23 = 253,480.07 : x
  2. Step 2: Convert to fraction form
    457,425.74/631,251.23 = 253,480.07/x
  3. Step 3: Cross multiply
    457,425.74x = 631,251.23 × 253,480.07
  4. Step 4: Simplify right side
    457,425.74x = 160,009,602,178.03
  5. Step 5: Solve for x
    x = 160,009,602,178.03/457,425.74
  6. Step 6: Final answer
    x = 349,804.54

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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.