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Finding the Fourth Proportional to 676,751.98, 933,881.97 and 386,352.04

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Solution

The fourth proportional to 676,751.98, 933,881.97 and 386,352.04 is: 533,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,751.98 : 933,881.97 = 386,352.04 : x
  2. Step 2: Convert to fraction form
    676,751.98/933,881.97 = 386,352.04/x
  3. Step 3: Cross multiply
    676,751.98x = 933,881.97 × 386,352.04
  4. Step 4: Simplify right side
    676,751.98x = 360,807,204,228.72
  5. Step 5: Solve for x
    x = 360,807,204,228.72/676,751.98
  6. Step 6: Final answer
    x = 533,145.40

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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.