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Finding the Fourth Proportional to 657,316.40, 986,752.20 and 373,233.20

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Solution

The fourth proportional to 657,316.40, 986,752.20 and 373,233.20 is: 560,291.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,316.40 : 986,752.20 = 373,233.20 : x
  2. Step 2: Convert to fraction form
    657,316.40/986,752.20 = 373,233.20/x
  3. Step 3: Cross multiply
    657,316.40x = 986,752.20 × 373,233.20
  4. Step 4: Simplify right side
    657,316.40x = 368,288,681,213.04
  5. Step 5: Solve for x
    x = 368,288,681,213.04/657,316.40
  6. Step 6: Final answer
    x = 560,291.33

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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.