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Finding the Fourth Proportional to 469,886.79, 648,444.41 and 255,026.87

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Solution

The fourth proportional to 469,886.79, 648,444.41 and 255,026.87 is: 351,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,886.79 : 648,444.41 = 255,026.87 : x
  2. Step 2: Convert to fraction form
    469,886.79/648,444.41 = 255,026.87/x
  3. Step 3: Cross multiply
    469,886.79x = 648,444.41 × 255,026.87
  4. Step 4: Simplify right side
    469,886.79x = 165,370,748,251.30
  5. Step 5: Solve for x
    x = 165,370,748,251.30/469,886.79
  6. Step 6: Final answer
    x = 351,937.43

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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.