Home / 764,221.87-1,053,514.69-534,064.59

Finding the Fourth Proportional to 764,221.87, 1,053,514.69 and 534,064.59

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Solution

The fourth proportional to 764,221.87, 1,053,514.69 and 534,064.59 is: 736,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,221.87 : 1,053,514.69 = 534,064.59 : x
  2. Step 2: Convert to fraction form
    764,221.87/1,053,514.69 = 534,064.59/x
  3. Step 3: Cross multiply
    764,221.87x = 1,053,514.69 × 534,064.59
  4. Step 4: Simplify right side
    764,221.87x = 562,644,889,638.67
  5. Step 5: Solve for x
    x = 562,644,889,638.67/764,221.87
  6. Step 6: Final answer
    x = 736,232.38

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Half scale
Find fourth proportional to 1,528,443.74, 2,107,029.38 and 1,068,129.18
Double scale
Find fourth proportional to 764,222.87, 1,053,516.07 and 534,065.59
Similar ratio
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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.