Home / 840,760.60-1,261,140.90-693,138.10

Finding the Fourth Proportional to 840,760.60, 1,261,140.90 and 693,138.10

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Solution

The fourth proportional to 840,760.60, 1,261,140.90 and 693,138.10 is: 1,039,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,760.60 : 1,261,140.90 = 693,138.10 : x
  2. Step 2: Convert to fraction form
    840,760.60/1,261,140.90 = 693,138.10/x
  3. Step 3: Cross multiply
    840,760.60x = 1,261,140.90 × 693,138.10
  4. Step 4: Simplify right side
    840,760.60x = 874,144,807,258.29
  5. Step 5: Solve for x
    x = 874,144,807,258.29/840,760.60
  6. Step 6: Final answer
    x = 1,039,707.15

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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.