Home / 771,753.40-1,065,019.69-432,221.65

Finding the Fourth Proportional to 771,753.40, 1,065,019.69 and 432,221.65

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Solution

The fourth proportional to 771,753.40, 1,065,019.69 and 432,221.65 is: 596,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,753.40 : 1,065,019.69 = 432,221.65 : x
  2. Step 2: Convert to fraction form
    771,753.40/1,065,019.69 = 432,221.65/x
  3. Step 3: Cross multiply
    771,753.40x = 1,065,019.69 × 432,221.65
  4. Step 4: Simplify right side
    771,753.40x = 460,324,567,694.29
  5. Step 5: Solve for x
    x = 460,324,567,694.29/771,753.40
  6. Step 6: Final answer
    x = 596,465.88

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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.