Home / 671,786.72-925,985.16-453,927.36

Finding the Fourth Proportional to 671,786.72, 925,985.16 and 453,927.36

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Solution

The fourth proportional to 671,786.72, 925,985.16 and 453,927.36 is: 625,689.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,786.72 : 925,985.16 = 453,927.36 : x
  2. Step 2: Convert to fraction form
    671,786.72/925,985.16 = 453,927.36/x
  3. Step 3: Cross multiply
    671,786.72x = 925,985.16 × 453,927.36
  4. Step 4: Simplify right side
    671,786.72x = 420,329,999,077.98
  5. Step 5: Solve for x
    x = 420,329,999,077.98/671,786.72
  6. Step 6: Final answer
    x = 625,689.65

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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.