Home / 465,947.40-698,921.10-439,703.40

Finding the Fourth Proportional to 465,947.40, 698,921.10 and 439,703.40

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Solution

The fourth proportional to 465,947.40, 698,921.10 and 439,703.40 is: 659,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,947.40 : 698,921.10 = 439,703.40 : x
  2. Step 2: Convert to fraction form
    465,947.40/698,921.10 = 439,703.40/x
  3. Step 3: Cross multiply
    465,947.40x = 698,921.10 × 439,703.40
  4. Step 4: Simplify right side
    465,947.40x = 307,317,984,001.74
  5. Step 5: Solve for x
    x = 307,317,984,001.74/465,947.40
  6. Step 6: Final answer
    x = 659,555.10

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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.