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Finding the Fourth Proportional to 578,755.98, 798,417.36 and 374,874.93

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Solution

The fourth proportional to 578,755.98, 798,417.36 and 374,874.93 is: 517,155.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,755.98 : 798,417.36 = 374,874.93 : x
  2. Step 2: Convert to fraction form
    578,755.98/798,417.36 = 374,874.93/x
  3. Step 3: Cross multiply
    578,755.98x = 798,417.36 × 374,874.93
  4. Step 4: Simplify right side
    578,755.98x = 299,306,651,940.79
  5. Step 5: Solve for x
    x = 299,306,651,940.79/578,755.98
  6. Step 6: Final answer
    x = 517,155.18

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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.