Home / 718,166.59-991,020.36-403,885.43

Finding the Fourth Proportional to 718,166.59, 991,020.36 and 403,885.43

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Solution

The fourth proportional to 718,166.59, 991,020.36 and 403,885.43 is: 557,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,166.59 : 991,020.36 = 403,885.43 : x
  2. Step 2: Convert to fraction form
    718,166.59/991,020.36 = 403,885.43/x
  3. Step 3: Cross multiply
    718,166.59x = 991,020.36 × 403,885.43
  4. Step 4: Simplify right side
    718,166.59x = 400,258,684,693.28
  5. Step 5: Solve for x
    x = 400,258,684,693.28/718,166.59
  6. Step 6: Final answer
    x = 557,334.03

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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.