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Finding the Fourth Proportional to 664,490.24, 918,196.04 and 473,171.48

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Solution

The fourth proportional to 664,490.24, 918,196.04 and 473,171.48 is: 653,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,490.24 : 918,196.04 = 473,171.48 : x
  2. Step 2: Convert to fraction form
    664,490.24/918,196.04 = 473,171.48/x
  3. Step 3: Cross multiply
    664,490.24x = 918,196.04 × 473,171.48
  4. Step 4: Simplify right side
    664,490.24x = 434,464,179,106.57
  5. Step 5: Solve for x
    x = 434,464,179,106.57/664,490.24
  6. Step 6: Final answer
    x = 653,830.79

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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.