Home / 853,038.23-1,177,190.66-490,444.56

Finding the Fourth Proportional to 853,038.23, 1,177,190.66 and 490,444.56

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Solution

The fourth proportional to 853,038.23, 1,177,190.66 and 490,444.56 is: 676,812.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,038.23 : 1,177,190.66 = 490,444.56 : x
  2. Step 2: Convert to fraction form
    853,038.23/1,177,190.66 = 490,444.56/x
  3. Step 3: Cross multiply
    853,038.23x = 1,177,190.66 × 490,444.56
  4. Step 4: Simplify right side
    853,038.23x = 577,346,752,827.59
  5. Step 5: Solve for x
    x = 577,346,752,827.59/853,038.23
  6. Step 6: Final answer
    x = 676,812.29

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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.