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Finding the Fourth Proportional to 664,356.55, 927,999.65 and 664,356.55

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Solution

The fourth proportional to 664,356.55, 927,999.65 and 664,356.55 is: 927,999.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356.55 : 927,999.65 = 664,356.55 : x
  2. Step 2: Convert to fraction form
    664,356.55/927,999.65 = 664,356.55/x
  3. Step 3: Cross multiply
    664,356.55x = 927,999.65 × 664,356.55
  4. Step 4: Simplify right side
    664,356.55x = 616,522,645,875.21
  5. Step 5: Solve for x
    x = 616,522,645,875.21/664,356.55
  6. Step 6: Final answer
    x = 927,999.65

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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.