Home / 857,900.88-1,183,934.76-518,303.28

Finding the Fourth Proportional to 857,900.88, 1,183,934.76 and 518,303.28

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Solution

The fourth proportional to 857,900.88, 1,183,934.76 and 518,303.28 is: 715,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,900.88 : 1,183,934.76 = 518,303.28 : x
  2. Step 2: Convert to fraction form
    857,900.88/1,183,934.76 = 518,303.28/x
  3. Step 3: Cross multiply
    857,900.88x = 1,183,934.76 × 518,303.28
  4. Step 4: Simplify right side
    857,900.88x = 613,637,269,414.01
  5. Step 5: Solve for x
    x = 613,637,269,414.01/857,900.88
  6. Step 6: Final answer
    x = 715,277.58

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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.