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Finding the Fourth Proportional to 469,907.38, 648,472.88 and 255,047.52

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Solution

The fourth proportional to 469,907.38, 648,472.88 and 255,047.52 is: 351,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,907.38 : 648,472.88 = 255,047.52 : x
  2. Step 2: Convert to fraction form
    469,907.38/648,472.88 = 255,047.52/x
  3. Step 3: Cross multiply
    469,907.38x = 648,472.88 × 255,047.52
  4. Step 4: Simplify right side
    469,907.38x = 165,391,399,831.26
  5. Step 5: Solve for x
    x = 165,391,399,831.26/469,907.38
  6. Step 6: Final answer
    x = 351,965.96

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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.