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Finding the Fourth Proportional to 615,210.39, 922,810.05 and 194,486.40

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Solution

The fourth proportional to 615,210.39, 922,810.05 and 194,486.40 is: 291,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,210.39 : 922,810.05 = 194,486.40 : x
  2. Step 2: Convert to fraction form
    615,210.39/922,810.05 = 194,486.40/x
  3. Step 3: Cross multiply
    615,210.39x = 922,810.05 × 194,486.40
  4. Step 4: Simplify right side
    615,210.39x = 179,474,004,508.32
  5. Step 5: Solve for x
    x = 179,474,004,508.32/615,210.39
  6. Step 6: Final answer
    x = 291,727.85

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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.