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Finding the Fourth Proportional to 657,200.70, 986,238.45 and 372,890.70

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Solution

The fourth proportional to 657,200.70, 986,238.45 and 372,890.70 is: 559,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,200.70 : 986,238.45 = 372,890.70 : x
  2. Step 2: Convert to fraction form
    657,200.70/986,238.45 = 372,890.70/x
  3. Step 3: Cross multiply
    657,200.70x = 986,238.45 × 372,890.70
  4. Step 4: Simplify right side
    657,200.70x = 367,759,145,987.42
  5. Step 5: Solve for x
    x = 367,759,145,987.42/657,200.70
  6. Step 6: Final answer
    x = 559,584.23

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Double scale
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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.