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Finding the Fourth Proportional to 615,926.39, 923,891.72 and 189,459.32

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Solution

The fourth proportional to 615,926.39, 923,891.72 and 189,459.32 is: 284,189.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,926.39 : 923,891.72 = 189,459.32 : x
  2. Step 2: Convert to fraction form
    615,926.39/923,891.72 = 189,459.32/x
  3. Step 3: Cross multiply
    615,926.39x = 923,891.72 × 189,459.32
  4. Step 4: Simplify right side
    615,926.39x = 175,039,891,458.08
  5. Step 5: Solve for x
    x = 175,039,891,458.08/615,926.39
  6. Step 6: Final answer
    x = 284,189.63

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1.5x scale

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.