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Finding the Fourth Proportional to 497,314.92, 686,864.70 and 328,303.56

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Solution

The fourth proportional to 497,314.92, 686,864.70 and 328,303.56 is: 453,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,314.92 : 686,864.70 = 328,303.56 : x
  2. Step 2: Convert to fraction form
    497,314.92/686,864.70 = 328,303.56/x
  3. Step 3: Cross multiply
    497,314.92x = 686,864.70 × 328,303.56
  4. Step 4: Simplify right side
    497,314.92x = 225,500,126,248.33
  5. Step 5: Solve for x
    x = 225,500,126,248.33/497,314.92
  6. Step 6: Final answer
    x = 453,435.27

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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.