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Finding the Fourth Proportional to 676,543.48, 933,630.36 and 370,630.93

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Solution

The fourth proportional to 676,543.48, 933,630.36 and 370,630.93 is: 511,470.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,543.48 : 933,630.36 = 370,630.93 : x
  2. Step 2: Convert to fraction form
    676,543.48/933,630.36 = 370,630.93/x
  3. Step 3: Cross multiply
    676,543.48x = 933,630.36 × 370,630.93
  4. Step 4: Simplify right side
    676,543.48x = 346,032,288,603.04
  5. Step 5: Solve for x
    x = 346,032,288,603.04/676,543.48
  6. Step 6: Final answer
    x = 511,470.88

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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.