Home / 807,189.71-1,113,700.19-561,899.63

Finding the Fourth Proportional to 807,189.71, 1,113,700.19 and 561,899.63

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Solution

The fourth proportional to 807,189.71, 1,113,700.19 and 561,899.63 is: 775,267.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,189.71 : 1,113,700.19 = 561,899.63 : x
  2. Step 2: Convert to fraction form
    807,189.71/1,113,700.19 = 561,899.63/x
  3. Step 3: Cross multiply
    807,189.71x = 1,113,700.19 × 561,899.63
  4. Step 4: Simplify right side
    807,189.71x = 625,787,724,666.68
  5. Step 5: Solve for x
    x = 625,787,724,666.68/807,189.71
  6. Step 6: Final answer
    x = 775,267.23

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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.