Home / 521,417.64-781,929.63-240,738.06

Finding the Fourth Proportional to 521,417.64, 781,929.63 and 240,738.06

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Solution

The fourth proportional to 521,417.64, 781,929.63 and 240,738.06 is: 361,016.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,417.64 : 781,929.63 = 240,738.06 : x
  2. Step 2: Convert to fraction form
    521,417.64/781,929.63 = 240,738.06/x
  3. Step 3: Cross multiply
    521,417.64x = 781,929.63 × 240,738.06
  4. Step 4: Simplify right side
    521,417.64x = 188,240,222,182.72
  5. Step 5: Solve for x
    x = 188,240,222,182.72/521,417.64
  6. Step 6: Final answer
    x = 361,016.21

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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.