Home / 1,177,124.40-1,766,998.80-645,683.40

Finding the Fourth Proportional to 1,177,124.40, 1,766,998.80 and 645,683.40

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Solution

The fourth proportional to 1,177,124.40, 1,766,998.80 and 645,683.40 is: 969,244.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,124.40 : 1,766,998.80 = 645,683.40 : x
  2. Step 2: Convert to fraction form
    1,177,124.40/1,766,998.80 = 645,683.40/x
  3. Step 3: Cross multiply
    1,177,124.40x = 1,766,998.80 × 645,683.40
  4. Step 4: Simplify right side
    1,177,124.40x = 1,140,921,792,979.92
  5. Step 5: Solve for x
    x = 1,140,921,792,979.92/1,177,124.40
  6. Step 6: Final answer
    x = 969,244.88

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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.