Home / 818,781.80-1,222,415.36-625,645.40

Finding the Fourth Proportional to 818,781.80, 1,222,415.36 and 625,645.40

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Solution

The fourth proportional to 818,781.80, 1,222,415.36 and 625,645.40 is: 934,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,781.80 : 1,222,415.36 = 625,645.40 : x
  2. Step 2: Convert to fraction form
    818,781.80/1,222,415.36 = 625,645.40/x
  3. Step 3: Cross multiply
    818,781.80x = 1,222,415.36 × 625,645.40
  4. Step 4: Simplify right side
    818,781.80x = 764,798,537,633.04
  5. Step 5: Solve for x
    x = 764,798,537,633.04/818,781.80
  6. Step 6: Final answer
    x = 934,068.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.