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Finding the Fourth Proportional to 546,443.68, 753,920.40 and 328,554.40

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Solution

The fourth proportional to 546,443.68, 753,920.40 and 328,554.40 is: 453,301.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,443.68 : 753,920.40 = 328,554.40 : x
  2. Step 2: Convert to fraction form
    546,443.68/753,920.40 = 328,554.40/x
  3. Step 3: Cross multiply
    546,443.68x = 753,920.40 × 328,554.40
  4. Step 4: Simplify right side
    546,443.68x = 247,703,864,669.76
  5. Step 5: Solve for x
    x = 247,703,864,669.76/546,443.68
  6. Step 6: Final answer
    x = 453,301.73

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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.