Home / 1,101,953.72-1,520,612.75-618,425.44

Finding the Fourth Proportional to 1,101,953.72, 1,520,612.75 and 618,425.44

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Solution

The fourth proportional to 1,101,953.72, 1,520,612.75 and 618,425.44 is: 853,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,953.72 : 1,520,612.75 = 618,425.44 : x
  2. Step 2: Convert to fraction form
    1,101,953.72/1,520,612.75 = 618,425.44/x
  3. Step 3: Cross multiply
    1,101,953.72x = 1,520,612.75 × 618,425.44
  4. Step 4: Simplify right side
    1,101,953.72x = 940,385,613,946.06
  5. Step 5: Solve for x
    x = 940,385,613,946.06/1,101,953.72
  6. Step 6: Final answer
    x = 853,380.32

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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.