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Finding the Fourth Proportional to 619,613.36, 928,919.68 and 240,338.32

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Solution

The fourth proportional to 619,613.36, 928,919.68 and 240,338.32 is: 360,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,613.36 : 928,919.68 = 240,338.32 : x
  2. Step 2: Convert to fraction form
    619,613.36/928,919.68 = 240,338.32/x
  3. Step 3: Cross multiply
    619,613.36x = 928,919.68 × 240,338.32
  4. Step 4: Simplify right side
    619,613.36x = 223,254,995,306.14
  5. Step 5: Solve for x
    x = 223,254,995,306.14/619,613.36
  6. Step 6: Final answer
    x = 360,313.40

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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.