Home / 698,191.20-963,200.16-439,911.36

Finding the Fourth Proportional to 698,191.20, 963,200.16 and 439,911.36

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Solution

The fourth proportional to 698,191.20, 963,200.16 and 439,911.36 is: 606,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,191.20 : 963,200.16 = 439,911.36 : x
  2. Step 2: Convert to fraction form
    698,191.20/963,200.16 = 439,911.36/x
  3. Step 3: Cross multiply
    698,191.20x = 963,200.16 × 439,911.36
  4. Step 4: Simplify right side
    698,191.20x = 423,722,692,337.82
  5. Step 5: Solve for x
    x = 423,722,692,337.82/698,191.20
  6. Step 6: Final answer
    x = 606,886.33

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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.