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Finding the Fourth Proportional to 444,087.30, 666,130.14 and 128,543.70

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Solution

The fourth proportional to 444,087.30, 666,130.14 and 128,543.70 is: 192,815.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,087.30 : 666,130.14 = 128,543.70 : x
  2. Step 2: Convert to fraction form
    444,087.30/666,130.14 = 128,543.70/x
  3. Step 3: Cross multiply
    444,087.30x = 666,130.14 × 128,543.70
  4. Step 4: Simplify right side
    444,087.30x = 85,626,832,877.12
  5. Step 5: Solve for x
    x = 85,626,832,877.12/444,087.30
  6. Step 6: Final answer
    x = 192,815.32

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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.