Home / 714,301.20-985,766.40-427,766.40

Finding the Fourth Proportional to 714,301.20, 985,766.40 and 427,766.40

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Solution

The fourth proportional to 714,301.20, 985,766.40 and 427,766.40 is: 590,336.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,301.20 : 985,766.40 = 427,766.40 : x
  2. Step 2: Convert to fraction form
    714,301.20/985,766.40 = 427,766.40/x
  3. Step 3: Cross multiply
    714,301.20x = 985,766.40 × 427,766.40
  4. Step 4: Simplify right side
    714,301.20x = 421,677,744,168.96
  5. Step 5: Solve for x
    x = 421,677,744,168.96/714,301.20
  6. Step 6: Final answer
    x = 590,336.04

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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.