Home / 779,512.82-1,075,719.56-439,995.38

Finding the Fourth Proportional to 779,512.82, 1,075,719.56 and 439,995.38

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Solution

The fourth proportional to 779,512.82, 1,075,719.56 and 439,995.38 is: 607,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,512.82 : 1,075,719.56 = 439,995.38 : x
  2. Step 2: Convert to fraction form
    779,512.82/1,075,719.56 = 439,995.38/x
  3. Step 3: Cross multiply
    779,512.82x = 1,075,719.56 × 439,995.38
  4. Step 4: Simplify right side
    779,512.82x = 473,311,636,575.63
  5. Step 5: Solve for x
    x = 473,311,636,575.63/779,512.82
  6. Step 6: Final answer
    x = 607,189.03

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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.