Home / 826,637.30-1,239,955.95-543,202.10

Finding the Fourth Proportional to 826,637.30, 1,239,955.95 and 543,202.10

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Solution

The fourth proportional to 826,637.30, 1,239,955.95 and 543,202.10 is: 814,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,637.30 : 1,239,955.95 = 543,202.10 : x
  2. Step 2: Convert to fraction form
    826,637.30/1,239,955.95 = 543,202.10/x
  3. Step 3: Cross multiply
    826,637.30x = 1,239,955.95 × 543,202.10
  4. Step 4: Simplify right side
    826,637.30x = 673,546,675,947.50
  5. Step 5: Solve for x
    x = 673,546,675,947.50/826,637.30
  6. Step 6: Final answer
    x = 814,803.15

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Double scale
Find fourth proportional to 826,638.30, 1,239,957.45 and 543,203.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.