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Finding the Fourth Proportional to 517,402.12, 776,603.71 and 373,456.34

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Solution

The fourth proportional to 517,402.12, 776,603.71 and 373,456.34 is: 560,545.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,402.12 : 776,603.71 = 373,456.34 : x
  2. Step 2: Convert to fraction form
    517,402.12/776,603.71 = 373,456.34/x
  3. Step 3: Cross multiply
    517,402.12x = 776,603.71 × 373,456.34
  4. Step 4: Simplify right side
    517,402.12x = 290,027,579,167.02
  5. Step 5: Solve for x
    x = 290,027,579,167.02/517,402.12
  6. Step 6: Final answer
    x = 560,545.79

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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.