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Finding the Fourth Proportional to 615,048.48, 922,638.36 and 260,098.38

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Solution

The fourth proportional to 615,048.48, 922,638.36 and 260,098.38 is: 390,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,048.48 : 922,638.36 = 260,098.38 : x
  2. Step 2: Convert to fraction form
    615,048.48/922,638.36 = 260,098.38/x
  3. Step 3: Cross multiply
    615,048.48x = 922,638.36 × 260,098.38
  4. Step 4: Simplify right side
    615,048.48x = 239,976,742,761.86
  5. Step 5: Solve for x
    x = 239,976,742,761.86/615,048.48
  6. Step 6: Final answer
    x = 390,175.33

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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.