Home / 401,943.68-554,568.72-258,786.56

Finding the Fourth Proportional to 401,943.68, 554,568.72 and 258,786.56

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Solution

The fourth proportional to 401,943.68, 554,568.72 and 258,786.56 is: 357,052.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,943.68 : 554,568.72 = 258,786.56 : x
  2. Step 2: Convert to fraction form
    401,943.68/554,568.72 = 258,786.56/x
  3. Step 3: Cross multiply
    401,943.68x = 554,568.72 × 258,786.56
  4. Step 4: Simplify right side
    401,943.68x = 143,514,931,332.40
  5. Step 5: Solve for x
    x = 143,514,931,332.40/401,943.68
  6. Step 6: Final answer
    x = 357,052.34

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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.