Home / 819,442.78-1,130,429.11-547,577.42

Finding the Fourth Proportional to 819,442.78, 1,130,429.11 and 547,577.42

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Solution

The fourth proportional to 819,442.78, 1,130,429.11 and 547,577.42 is: 755,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,442.78 : 1,130,429.11 = 547,577.42 : x
  2. Step 2: Convert to fraction form
    819,442.78/1,130,429.11 = 547,577.42/x
  3. Step 3: Cross multiply
    819,442.78x = 1,130,429.11 × 547,577.42
  4. Step 4: Simplify right side
    819,442.78x = 618,997,454,370.92
  5. Step 5: Solve for x
    x = 618,997,454,370.92/819,442.78
  6. Step 6: Final answer
    x = 755,388.26

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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.