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Finding the Fourth Proportional to 442,020.11, 610,061.13 and 260,776.60

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Solution

The fourth proportional to 442,020.11, 610,061.13 and 260,776.60 is: 359,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,020.11 : 610,061.13 = 260,776.60 : x
  2. Step 2: Convert to fraction form
    442,020.11/610,061.13 = 260,776.60/x
  3. Step 3: Cross multiply
    442,020.11x = 610,061.13 × 260,776.60
  4. Step 4: Simplify right side
    442,020.11x = 159,089,665,748.41
  5. Step 5: Solve for x
    x = 159,089,665,748.41/442,020.11
  6. Step 6: Final answer
    x = 359,915.00

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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.