Home / 718,556.91-991,575.18-412,417.83

Finding the Fourth Proportional to 718,556.91, 991,575.18 and 412,417.83

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Solution

The fourth proportional to 718,556.91, 991,575.18 and 412,417.83 is: 569,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,556.91 : 991,575.18 = 412,417.83 : x
  2. Step 2: Convert to fraction form
    718,556.91/991,575.18 = 412,417.83/x
  3. Step 3: Cross multiply
    718,556.91x = 991,575.18 × 412,417.83
  4. Step 4: Simplify right side
    718,556.91x = 408,943,284,017.46
  5. Step 5: Solve for x
    x = 408,943,284,017.46/718,556.91
  6. Step 6: Final answer
    x = 569,117.46

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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.