Home / 457,056.41-630,659.52-285,028.34

Finding the Fourth Proportional to 457,056.41, 630,659.52 and 285,028.34

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Solution

The fourth proportional to 457,056.41, 630,659.52 and 285,028.34 is: 393,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,056.41 : 630,659.52 = 285,028.34 : x
  2. Step 2: Convert to fraction form
    457,056.41/630,659.52 = 285,028.34/x
  3. Step 3: Cross multiply
    457,056.41x = 630,659.52 × 285,028.34
  4. Step 4: Simplify right side
    457,056.41x = 179,755,832,937.50
  5. Step 5: Solve for x
    x = 179,755,832,937.50/457,056.41
  6. Step 6: Final answer
    x = 393,290.26

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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.