Home / 1,005,001.69-1,387,121.08-618,149.61

Finding the Fourth Proportional to 1,005,001.69, 1,387,121.08 and 618,149.61

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Solution

The fourth proportional to 1,005,001.69, 1,387,121.08 and 618,149.61 is: 853,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,001.69 : 1,387,121.08 = 618,149.61 : x
  2. Step 2: Convert to fraction form
    1,005,001.69/1,387,121.08 = 618,149.61/x
  3. Step 3: Cross multiply
    1,005,001.69x = 1,387,121.08 × 618,149.61
  4. Step 4: Simplify right side
    1,005,001.69x = 857,448,354,624.78
  5. Step 5: Solve for x
    x = 857,448,354,624.78/1,005,001.69
  6. Step 6: Final answer
    x = 853,181.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.