Home / 816,440.70-1,126,717.08-448,945.83

Finding the Fourth Proportional to 816,440.70, 1,126,717.08 and 448,945.83

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Solution

The fourth proportional to 816,440.70, 1,126,717.08 and 448,945.83 is: 619,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,440.70 : 1,126,717.08 = 448,945.83 : x
  2. Step 2: Convert to fraction form
    816,440.70/1,126,717.08 = 448,945.83/x
  3. Step 3: Cross multiply
    816,440.70x = 1,126,717.08 × 448,945.83
  4. Step 4: Simplify right side
    816,440.70x = 505,834,934,655.78
  5. Step 5: Solve for x
    x = 505,834,934,655.78/816,440.70
  6. Step 6: Final answer
    x = 619,561.14

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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.