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Finding the Fourth Proportional to 672,113.55, 927,473.45 and 400,201.41

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Solution

The fourth proportional to 672,113.55, 927,473.45 and 400,201.41 is: 552,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,113.55 : 927,473.45 = 400,201.41 : x
  2. Step 2: Convert to fraction form
    672,113.55/927,473.45 = 400,201.41/x
  3. Step 3: Cross multiply
    672,113.55x = 927,473.45 × 400,201.41
  4. Step 4: Simplify right side
    672,113.55x = 371,176,180,426.56
  5. Step 5: Solve for x
    x = 371,176,180,426.56/672,113.55
  6. Step 6: Final answer
    x = 552,252.19

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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.