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Finding the Fourth Proportional to 615,206.40, 923,198.40 and 362,486.40

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Solution

The fourth proportional to 615,206.40, 923,198.40 and 362,486.40 is: 543,958.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,206.40 : 923,198.40 = 362,486.40 : x
  2. Step 2: Convert to fraction form
    615,206.40/923,198.40 = 362,486.40/x
  3. Step 3: Cross multiply
    615,206.40x = 923,198.40 × 362,486.40
  4. Step 4: Simplify right side
    615,206.40x = 334,646,864,501.76
  5. Step 5: Solve for x
    x = 334,646,864,501.76/615,206.40
  6. Step 6: Final answer
    x = 543,958.69

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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.