Home / 923,920.80-1,386,627.51-391,815.18

Finding the Fourth Proportional to 923,920.80, 1,386,627.51 and 391,815.18

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Solution

The fourth proportional to 923,920.80, 1,386,627.51 and 391,815.18 is: 588,039.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,920.80 : 1,386,627.51 = 391,815.18 : x
  2. Step 2: Convert to fraction form
    923,920.80/1,386,627.51 = 391,815.18/x
  3. Step 3: Cross multiply
    923,920.80x = 1,386,627.51 × 391,815.18
  4. Step 4: Simplify right side
    923,920.80x = 543,301,707,423.60
  5. Step 5: Solve for x
    x = 543,301,707,423.60/923,920.80
  6. Step 6: Final answer
    x = 588,039.26

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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.