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Finding the Fourth Proportional to 681,486.61, 940,492.62 and 375,562.18

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Solution

The fourth proportional to 681,486.61, 940,492.62 and 375,562.18 is: 518,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,486.61 : 940,492.62 = 375,562.18 : x
  2. Step 2: Convert to fraction form
    681,486.61/940,492.62 = 375,562.18/x
  3. Step 3: Cross multiply
    681,486.61x = 940,492.62 × 375,562.18
  4. Step 4: Simplify right side
    681,486.61x = 353,213,458,641.11
  5. Step 5: Solve for x
    x = 353,213,458,641.11/681,486.61
  6. Step 6: Final answer
    x = 518,298.46

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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.