Home / 863,481.30-1,191,605.40-476,288.07

Finding the Fourth Proportional to 863,481.30, 1,191,605.40 and 476,288.07

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Solution

The fourth proportional to 863,481.30, 1,191,605.40 and 476,288.07 is: 657,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,481.30 : 1,191,605.40 = 476,288.07 : x
  2. Step 2: Convert to fraction form
    863,481.30/1,191,605.40 = 476,288.07/x
  3. Step 3: Cross multiply
    863,481.30x = 1,191,605.40 × 476,288.07
  4. Step 4: Simplify right side
    863,481.30x = 567,547,436,167.58
  5. Step 5: Solve for x
    x = 567,547,436,167.58/863,481.30
  6. Step 6: Final answer
    x = 657,278.20

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Double scale
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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.