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Finding the Fourth Proportional to 653,319, 979,058.88 and 519,605.82

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Solution

The fourth proportional to 653,319, 979,058.88 and 519,605.82 is: 778,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,319 : 979,058.88 = 519,605.82 : x
  2. Step 2: Convert to fraction form
    653,319/979,058.88 = 519,605.82/x
  3. Step 3: Cross multiply
    653,319x = 979,058.88 × 519,605.82
  4. Step 4: Simplify right side
    653,319x = 508,724,692,170.68
  5. Step 5: Solve for x
    x = 508,724,692,170.68/653,319
  6. Step 6: Final answer
    x = 778,677.33

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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.