Home / 808,066.32-1,115,139.12-445,502.88

Finding the Fourth Proportional to 808,066.32, 1,115,139.12 and 445,502.88

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Solution

The fourth proportional to 808,066.32, 1,115,139.12 and 445,502.88 is: 614,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,066.32 : 1,115,139.12 = 445,502.88 : x
  2. Step 2: Convert to fraction form
    808,066.32/1,115,139.12 = 445,502.88/x
  3. Step 3: Cross multiply
    808,066.32x = 1,115,139.12 × 445,502.88
  4. Step 4: Simplify right side
    808,066.32x = 496,797,689,560.67
  5. Step 5: Solve for x
    x = 496,797,689,560.67/808,066.32
  6. Step 6: Final answer
    x = 614,798.16

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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.