Home / 864,398.57-1,193,026.15-515,561.33

Finding the Fourth Proportional to 864,398.57, 1,193,026.15 and 515,561.33

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Solution

The fourth proportional to 864,398.57, 1,193,026.15 and 515,561.33 is: 711,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,398.57 : 1,193,026.15 = 515,561.33 : x
  2. Step 2: Convert to fraction form
    864,398.57/1,193,026.15 = 515,561.33/x
  3. Step 3: Cross multiply
    864,398.57x = 1,193,026.15 × 515,561.33
  4. Step 4: Simplify right side
    864,398.57x = 615,078,148,618.78
  5. Step 5: Solve for x
    x = 615,078,148,618.78/864,398.57
  6. Step 6: Final answer
    x = 711,567.75

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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.