Home / 1,131,650.77-1,561,689.12-615,415.75

Finding the Fourth Proportional to 1,131,650.77, 1,561,689.12 and 615,415.75

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Solution

The fourth proportional to 1,131,650.77, 1,561,689.12 and 615,415.75 is: 849,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,650.77 : 1,561,689.12 = 615,415.75 : x
  2. Step 2: Convert to fraction form
    1,131,650.77/1,561,689.12 = 615,415.75/x
  3. Step 3: Cross multiply
    1,131,650.77x = 1,561,689.12 × 615,415.75
  4. Step 4: Simplify right side
    1,131,650.77x = 961,088,081,051.64
  5. Step 5: Solve for x
    x = 961,088,081,051.64/1,131,650.77
  6. Step 6: Final answer
    x = 849,279.75

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Double scale
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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.