Home / 1,188,329.40-1,781,706.90-656,105.40

Finding the Fourth Proportional to 1,188,329.40, 1,781,706.90 and 656,105.40

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Solution

The fourth proportional to 1,188,329.40, 1,781,706.90 and 656,105.40 is: 983,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,329.40 : 1,781,706.90 = 656,105.40 : x
  2. Step 2: Convert to fraction form
    1,188,329.40/1,781,706.90 = 656,105.40/x
  3. Step 3: Cross multiply
    1,188,329.40x = 1,781,706.90 × 656,105.40
  4. Step 4: Simplify right side
    1,188,329.40x = 1,168,987,518,307.26
  5. Step 5: Solve for x
    x = 1,168,987,518,307.26/1,188,329.40
  6. Step 6: Final answer
    x = 983,723.47

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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.