Home / 1,338,470.78-2,007,706.11-391,841.49

Finding the Fourth Proportional to 1,338,470.78, 2,007,706.11 and 391,841.49

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Solution

The fourth proportional to 1,338,470.78, 2,007,706.11 and 391,841.49 is: 587,762.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,470.78 : 2,007,706.11 = 391,841.49 : x
  2. Step 2: Convert to fraction form
    1,338,470.78/2,007,706.11 = 391,841.49/x
  3. Step 3: Cross multiply
    1,338,470.78x = 2,007,706.11 × 391,841.49
  4. Step 4: Simplify right side
    1,338,470.78x = 786,702,553,624.50
  5. Step 5: Solve for x
    x = 786,702,553,624.50/1,338,470.78
  6. Step 6: Final answer
    x = 587,762.22

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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.