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Finding the Fourth Proportional to 517,661.92, 714,263.64 and 326,564.56

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Solution

The fourth proportional to 517,661.92, 714,263.64 and 326,564.56 is: 450,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,661.92 : 714,263.64 = 326,564.56 : x
  2. Step 2: Convert to fraction form
    517,661.92/714,263.64 = 326,564.56/x
  3. Step 3: Cross multiply
    517,661.92x = 714,263.64 × 326,564.56
  4. Step 4: Simplify right side
    517,661.92x = 233,253,191,320.60
  5. Step 5: Solve for x
    x = 233,253,191,320.60/517,661.92
  6. Step 6: Final answer
    x = 450,589.82

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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.