Home / 826,631.40-1,239,947.10-354,239.40

Finding the Fourth Proportional to 826,631.40, 1,239,947.10 and 354,239.40

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Solution

The fourth proportional to 826,631.40, 1,239,947.10 and 354,239.40 is: 531,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,631.40 : 1,239,947.10 = 354,239.40 : x
  2. Step 2: Convert to fraction form
    826,631.40/1,239,947.10 = 354,239.40/x
  3. Step 3: Cross multiply
    826,631.40x = 1,239,947.10 × 354,239.40
  4. Step 4: Simplify right side
    826,631.40x = 439,238,116,735.74
  5. Step 5: Solve for x
    x = 439,238,116,735.74/826,631.40
  6. Step 6: Final answer
    x = 531,359.10

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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.