Home / 900,963.18-1,243,605.96-519,244.20

Finding the Fourth Proportional to 900,963.18, 1,243,605.96 and 519,244.20

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Solution

The fourth proportional to 900,963.18, 1,243,605.96 and 519,244.20 is: 716,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,963.18 : 1,243,605.96 = 519,244.20 : x
  2. Step 2: Convert to fraction form
    900,963.18/1,243,605.96 = 519,244.20/x
  3. Step 3: Cross multiply
    900,963.18x = 1,243,605.96 × 519,244.20
  4. Step 4: Simplify right side
    900,963.18x = 645,735,181,815.43
  5. Step 5: Solve for x
    x = 645,735,181,815.43/900,963.18
  6. Step 6: Final answer
    x = 716,716.51

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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.