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Finding the Fourth Proportional to 469,925.88, 648,502.40 and 255,068

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Solution

The fourth proportional to 469,925.88, 648,502.40 and 255,068 is: 351,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,925.88 : 648,502.40 = 255,068 : x
  2. Step 2: Convert to fraction form
    469,925.88/648,502.40 = 255,068/x
  3. Step 3: Cross multiply
    469,925.88x = 648,502.40 × 255,068
  4. Step 4: Simplify right side
    469,925.88x = 165,412,210,163.20
  5. Step 5: Solve for x
    x = 165,412,210,163.20/469,925.88
  6. Step 6: Final answer
    x = 351,996.38

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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.