Home / 905,005.17-1,248,851.93-497,027.61

Finding the Fourth Proportional to 905,005.17, 1,248,851.93 and 497,027.61

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Solution

The fourth proportional to 905,005.17, 1,248,851.93 and 497,027.61 is: 685,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,005.17 : 1,248,851.93 = 497,027.61 : x
  2. Step 2: Convert to fraction form
    905,005.17/1,248,851.93 = 497,027.61/x
  3. Step 3: Cross multiply
    905,005.17x = 1,248,851.93 × 497,027.61
  4. Step 4: Simplify right side
    905,005.17x = 620,713,887,526.65
  5. Step 5: Solve for x
    x = 620,713,887,526.65/905,005.17
  6. Step 6: Final answer
    x = 685,867.78

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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.