Home / 455,056.38-627,972.75-251,108.91

Finding the Fourth Proportional to 455,056.38, 627,972.75 and 251,108.91

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Solution

The fourth proportional to 455,056.38, 627,972.75 and 251,108.91 is: 346,527.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,056.38 : 627,972.75 = 251,108.91 : x
  2. Step 2: Convert to fraction form
    455,056.38/627,972.75 = 251,108.91/x
  3. Step 3: Cross multiply
    455,056.38x = 627,972.75 × 251,108.91
  4. Step 4: Simplify right side
    455,056.38x = 157,689,552,762.20
  5. Step 5: Solve for x
    x = 157,689,552,762.20/455,056.38
  6. Step 6: Final answer
    x = 346,527.51

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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.