Home / 516,101.10-774,151.65-137,021.10

Finding the Fourth Proportional to 516,101.10, 774,151.65 and 137,021.10

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Solution

The fourth proportional to 516,101.10, 774,151.65 and 137,021.10 is: 205,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,101.10 : 774,151.65 = 137,021.10 : x
  2. Step 2: Convert to fraction form
    516,101.10/774,151.65 = 137,021.10/x
  3. Step 3: Cross multiply
    516,101.10x = 774,151.65 × 137,021.10
  4. Step 4: Simplify right side
    516,101.10x = 106,075,110,649.82
  5. Step 5: Solve for x
    x = 106,075,110,649.82/516,101.10
  6. Step 6: Final answer
    x = 205,531.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.