Home / 487,016.02-672,080.16-272,156.02

Finding the Fourth Proportional to 487,016.02, 672,080.16 and 272,156.02

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Solution

The fourth proportional to 487,016.02, 672,080.16 and 272,156.02 is: 375,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,016.02 : 672,080.16 = 272,156.02 : x
  2. Step 2: Convert to fraction form
    487,016.02/672,080.16 = 272,156.02/x
  3. Step 3: Cross multiply
    487,016.02x = 672,080.16 × 272,156.02
  4. Step 4: Simplify right side
    487,016.02x = 182,910,661,466.56
  5. Step 5: Solve for x
    x = 182,910,661,466.56/487,016.02
  6. Step 6: Final answer
    x = 375,574.22

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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.