Home / 409,785.06-565,860.28-257,085.75

Finding the Fourth Proportional to 409,785.06, 565,860.28 and 257,085.75

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Solution

The fourth proportional to 409,785.06, 565,860.28 and 257,085.75 is: 355,002.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,785.06 : 565,860.28 = 257,085.75 : x
  2. Step 2: Convert to fraction form
    409,785.06/565,860.28 = 257,085.75/x
  3. Step 3: Cross multiply
    409,785.06x = 565,860.28 × 257,085.75
  4. Step 4: Simplify right side
    409,785.06x = 145,474,613,836.30
  5. Step 5: Solve for x
    x = 145,474,613,836.30/409,785.06
  6. Step 6: Final answer
    x = 355,002.24

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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.