Home / 853,785.59-1,178,291.12-486,278.33

Finding the Fourth Proportional to 853,785.59, 1,178,291.12 and 486,278.33

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Solution

The fourth proportional to 853,785.59, 1,178,291.12 and 486,278.33 is: 671,102.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,785.59 : 1,178,291.12 = 486,278.33 : x
  2. Step 2: Convert to fraction form
    853,785.59/1,178,291.12 = 486,278.33/x
  3. Step 3: Cross multiply
    853,785.59x = 1,178,291.12 × 486,278.33
  4. Step 4: Simplify right side
    853,785.59x = 572,977,429,764.58
  5. Step 5: Solve for x
    x = 572,977,429,764.58/853,785.59
  6. Step 6: Final answer
    x = 671,102.25

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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.