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Finding the Fourth Proportional to 552,913.92, 761,955.84 and 401,771.52

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Solution

The fourth proportional to 552,913.92, 761,955.84 and 401,771.52 is: 553,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,913.92 : 761,955.84 = 401,771.52 : x
  2. Step 2: Convert to fraction form
    552,913.92/761,955.84 = 401,771.52/x
  3. Step 3: Cross multiply
    552,913.92x = 761,955.84 × 401,771.52
  4. Step 4: Simplify right side
    552,913.92x = 306,132,156,009.68
  5. Step 5: Solve for x
    x = 306,132,156,009.68/552,913.92
  6. Step 6: Final answer
    x = 553,670.55

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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.