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Finding the Fourth Proportional to 615,751.90, 922,072.65 and 404,244.70

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Solution

The fourth proportional to 615,751.90, 922,072.65 and 404,244.70 is: 605,346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,751.90 : 922,072.65 = 404,244.70 : x
  2. Step 2: Convert to fraction form
    615,751.90/922,072.65 = 404,244.70/x
  3. Step 3: Cross multiply
    615,751.90x = 922,072.65 × 404,244.70
  4. Step 4: Simplify right side
    615,751.90x = 372,742,981,777.46
  5. Step 5: Solve for x
    x = 372,742,981,777.46/615,751.90
  6. Step 6: Final answer
    x = 605,346.05

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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.