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Finding the Fourth Proportional to 717,225.88, 989,259.96 and 462,331.03

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Solution

The fourth proportional to 717,225.88, 989,259.96 and 462,331.03 is: 637,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,225.88 : 989,259.96 = 462,331.03 : x
  2. Step 2: Convert to fraction form
    717,225.88/989,259.96 = 462,331.03/x
  3. Step 3: Cross multiply
    717,225.88x = 989,259.96 × 462,331.03
  4. Step 4: Simplify right side
    717,225.88x = 457,365,575,747.39
  5. Step 5: Solve for x
    x = 457,365,575,747.39/717,225.88
  6. Step 6: Final answer
    x = 637,686.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.