Home / 718,303.17-991,258.03-412,399.27

Finding the Fourth Proportional to 718,303.17, 991,258.03 and 412,399.27

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Solution

The fourth proportional to 718,303.17, 991,258.03 and 412,399.27 is: 569,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,303.17 : 991,258.03 = 412,399.27 : x
  2. Step 2: Convert to fraction form
    718,303.17/991,258.03 = 412,399.27/x
  3. Step 3: Cross multiply
    718,303.17x = 991,258.03 × 412,399.27
  4. Step 4: Simplify right side
    718,303.17x = 408,794,087,953.64
  5. Step 5: Solve for x
    x = 408,794,087,953.64/718,303.17
  6. Step 6: Final answer
    x = 569,110.79

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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.