Home / 771,720.62-1,065,095.88-440,577.38

Finding the Fourth Proportional to 771,720.62, 1,065,095.88 and 440,577.38

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Solution

The fourth proportional to 771,720.62, 1,065,095.88 and 440,577.38 is: 608,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,720.62 : 1,065,095.88 = 440,577.38 : x
  2. Step 2: Convert to fraction form
    771,720.62/1,065,095.88 = 440,577.38/x
  3. Step 3: Cross multiply
    771,720.62x = 1,065,095.88 × 440,577.38
  4. Step 4: Simplify right side
    771,720.62x = 469,257,149,756.85
  5. Step 5: Solve for x
    x = 469,257,149,756.85/771,720.62
  6. Step 6: Final answer
    x = 608,066.11

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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.