Home / 806,005.14-1,112,287.05-443,421.18

Finding the Fourth Proportional to 806,005.14, 1,112,287.05 and 443,421.18

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Solution

The fourth proportional to 806,005.14, 1,112,287.05 and 443,421.18 is: 611,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,005.14 : 1,112,287.05 = 443,421.18 : x
  2. Step 2: Convert to fraction form
    806,005.14/1,112,287.05 = 443,421.18/x
  3. Step 3: Cross multiply
    806,005.14x = 1,112,287.05 × 443,421.18
  4. Step 4: Simplify right side
    806,005.14x = 493,211,636,209.72
  5. Step 5: Solve for x
    x = 493,211,636,209.72/806,005.14
  6. Step 6: Final answer
    x = 611,921.20

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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.