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Finding the Fourth Proportional to 461,606.40, 648,115.20 and 461,606.40

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Solution

The fourth proportional to 461,606.40, 648,115.20 and 461,606.40 is: 648,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,606.40 : 648,115.20 = 461,606.40 : x
  2. Step 2: Convert to fraction form
    461,606.40/648,115.20 = 461,606.40/x
  3. Step 3: Cross multiply
    461,606.40x = 648,115.20 × 461,606.40
  4. Step 4: Simplify right side
    461,606.40x = 299,174,124,257.28
  5. Step 5: Solve for x
    x = 299,174,124,257.28/461,606.40
  6. Step 6: Final answer
    x = 648,115.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.