Home / 353,860.32-487,758.08-239,103.12

Finding the Fourth Proportional to 353,860.32, 487,758.08 and 239,103.12

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Solution

The fourth proportional to 353,860.32, 487,758.08 and 239,103.12 is: 329,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,860.32 : 487,758.08 = 239,103.12 : x
  2. Step 2: Convert to fraction form
    353,860.32/487,758.08 = 239,103.12/x
  3. Step 3: Cross multiply
    353,860.32x = 487,758.08 × 239,103.12
  4. Step 4: Simplify right side
    353,860.32x = 116,624,478,733.21
  5. Step 5: Solve for x
    x = 116,624,478,733.21/353,860.32
  6. Step 6: Final answer
    x = 329,577.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.