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Finding the Fourth Proportional to 615,090.40, 922,635.60 and 377,663.20

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Solution

The fourth proportional to 615,090.40, 922,635.60 and 377,663.20 is: 566,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,090.40 : 922,635.60 = 377,663.20 : x
  2. Step 2: Convert to fraction form
    615,090.40/922,635.60 = 377,663.20/x
  3. Step 3: Cross multiply
    615,090.40x = 922,635.60 × 377,663.20
  4. Step 4: Simplify right side
    615,090.40x = 348,445,513,129.92
  5. Step 5: Solve for x
    x = 348,445,513,129.92/615,090.40
  6. Step 6: Final answer
    x = 566,494.80

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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.