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Finding the Fourth Proportional to 360,679.40, 497,630.10 and 207,713.54

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Solution

The fourth proportional to 360,679.40, 497,630.10 and 207,713.54 is: 286,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,679.40 : 497,630.10 = 207,713.54 : x
  2. Step 2: Convert to fraction form
    360,679.40/497,630.10 = 207,713.54/x
  3. Step 3: Cross multiply
    360,679.40x = 497,630.10 × 207,713.54
  4. Step 4: Simplify right side
    360,679.40x = 103,364,509,681.55
  5. Step 5: Solve for x
    x = 103,364,509,681.55/360,679.40
  6. Step 6: Final answer
    x = 286,582.79

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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.