Home / 774,018.20-1,161,027.30-455,153.60

Finding the Fourth Proportional to 774,018.20, 1,161,027.30 and 455,153.60

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Solution

The fourth proportional to 774,018.20, 1,161,027.30 and 455,153.60 is: 682,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,018.20 : 1,161,027.30 = 455,153.60 : x
  2. Step 2: Convert to fraction form
    774,018.20/1,161,027.30 = 455,153.60/x
  3. Step 3: Cross multiply
    774,018.20x = 1,161,027.30 × 455,153.60
  4. Step 4: Simplify right side
    774,018.20x = 528,445,755,293.28
  5. Step 5: Solve for x
    x = 528,445,755,293.28/774,018.20
  6. Step 6: Final answer
    x = 682,730.40

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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.