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Finding the Fourth Proportional to 667,619.04, 996,572.14 and 618,280.32

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Solution

The fourth proportional to 667,619.04, 996,572.14 and 618,280.32 is: 922,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,619.04 : 996,572.14 = 618,280.32 : x
  2. Step 2: Convert to fraction form
    667,619.04/996,572.14 = 618,280.32/x
  3. Step 3: Cross multiply
    667,619.04x = 996,572.14 × 618,280.32
  4. Step 4: Simplify right side
    667,619.04x = 616,160,941,622.29
  5. Step 5: Solve for x
    x = 616,160,941,622.29/667,619.04
  6. Step 6: Final answer
    x = 922,922.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.