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Finding the Fourth Proportional to 349,656.71, 525,484.62 and 325,963.40

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Solution

The fourth proportional to 349,656.71, 525,484.62 and 325,963.40 is: 489,876.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,656.71 : 525,484.62 = 325,963.40 : x
  2. Step 2: Convert to fraction form
    349,656.71/525,484.62 = 325,963.40/x
  3. Step 3: Cross multiply
    349,656.71x = 525,484.62 × 325,963.40
  4. Step 4: Simplify right side
    349,656.71x = 171,288,750,755.49
  5. Step 5: Solve for x
    x = 171,288,750,755.49/349,656.71
  6. Step 6: Final answer
    x = 489,876.92

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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.