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Finding the Fourth Proportional to 615,145.70, 922,632.15 and 194,464.10

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Solution

The fourth proportional to 615,145.70, 922,632.15 and 194,464.10 is: 291,668.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,145.70 : 922,632.15 = 194,464.10 : x
  2. Step 2: Convert to fraction form
    615,145.70/922,632.15 = 194,464.10/x
  3. Step 3: Cross multiply
    615,145.70x = 922,632.15 × 194,464.10
  4. Step 4: Simplify right side
    615,145.70x = 179,418,830,680.82
  5. Step 5: Solve for x
    x = 179,418,830,680.82/615,145.70
  6. Step 6: Final answer
    x = 291,668.84

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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.