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Finding the Fourth Proportional to 615,066.30, 922,729.05 and 194,384.70

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Solution

The fourth proportional to 615,066.30, 922,729.05 and 194,384.70 is: 291,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,066.30 : 922,729.05 = 194,384.70 : x
  2. Step 2: Convert to fraction form
    615,066.30/922,729.05 = 194,384.70/x
  3. Step 3: Cross multiply
    615,066.30x = 922,729.05 × 194,384.70
  4. Step 4: Simplify right side
    615,066.30x = 179,364,409,565.54
  5. Step 5: Solve for x
    x = 179,364,409,565.54/615,066.30
  6. Step 6: Final answer
    x = 291,618.01

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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.