Home / 867,693.12-1,197,404.28-485,719.44

Finding the Fourth Proportional to 867,693.12, 1,197,404.28 and 485,719.44

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Solution

The fourth proportional to 867,693.12, 1,197,404.28 and 485,719.44 is: 670,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,693.12 : 1,197,404.28 = 485,719.44 : x
  2. Step 2: Convert to fraction form
    867,693.12/1,197,404.28 = 485,719.44/x
  3. Step 3: Cross multiply
    867,693.12x = 1,197,404.28 × 485,719.44
  4. Step 4: Simplify right side
    867,693.12x = 581,602,536,335.20
  5. Step 5: Solve for x
    x = 581,602,536,335.20/867,693.12
  6. Step 6: Final answer
    x = 670,285.98

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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.