Home / 771,086.80-1,064,099.64-431,555.06

Finding the Fourth Proportional to 771,086.80, 1,064,099.64 and 431,555.06

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Solution

The fourth proportional to 771,086.80, 1,064,099.64 and 431,555.06 is: 595,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,086.80 : 1,064,099.64 = 431,555.06 : x
  2. Step 2: Convert to fraction form
    771,086.80/1,064,099.64 = 431,555.06/x
  3. Step 3: Cross multiply
    771,086.80x = 1,064,099.64 × 431,555.06
  4. Step 4: Simplify right side
    771,086.80x = 459,217,583,986.18
  5. Step 5: Solve for x
    x = 459,217,583,986.18/771,086.80
  6. Step 6: Final answer
    x = 595,545.90

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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.