Home / 780,605.61-1,077,221.70-441,066.57

Finding the Fourth Proportional to 780,605.61, 1,077,221.70 and 441,066.57

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Solution

The fourth proportional to 780,605.61, 1,077,221.70 and 441,066.57 is: 608,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,605.61 : 1,077,221.70 = 441,066.57 : x
  2. Step 2: Convert to fraction form
    780,605.61/1,077,221.70 = 441,066.57/x
  3. Step 3: Cross multiply
    780,605.61x = 1,077,221.70 × 441,066.57
  4. Step 4: Simplify right side
    780,605.61x = 475,126,480,348.57
  5. Step 5: Solve for x
    x = 475,126,480,348.57/780,605.61
  6. Step 6: Final answer
    x = 608,663.93

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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.