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Finding the Fourth Proportional to 666,745.71, 999,232.83 and 382,572.40

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Solution

The fourth proportional to 666,745.71, 999,232.83 and 382,572.40 is: 573,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,745.71 : 999,232.83 = 382,572.40 : x
  2. Step 2: Convert to fraction form
    666,745.71/999,232.83 = 382,572.40/x
  3. Step 3: Cross multiply
    666,745.71x = 999,232.83 × 382,572.40
  4. Step 4: Simplify right side
    666,745.71x = 382,278,901,931.89
  5. Step 5: Solve for x
    x = 382,278,901,931.89/666,745.71
  6. Step 6: Final answer
    x = 573,350.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.