Home / 815,633.40-1,221,030.90-606,199.80

Finding the Fourth Proportional to 815,633.40, 1,221,030.90 and 606,199.80

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Solution

The fourth proportional to 815,633.40, 1,221,030.90 and 606,199.80 is: 907,501.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,633.40 : 1,221,030.90 = 606,199.80 : x
  2. Step 2: Convert to fraction form
    815,633.40/1,221,030.90 = 606,199.80/x
  3. Step 3: Cross multiply
    815,633.40x = 1,221,030.90 × 606,199.80
  4. Step 4: Simplify right side
    815,633.40x = 740,188,687,373.82
  5. Step 5: Solve for x
    x = 740,188,687,373.82/815,633.40
  6. Step 6: Final answer
    x = 907,501.69

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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.