Home / 714,252.09-985,696.29-391,973.70

Finding the Fourth Proportional to 714,252.09, 985,696.29 and 391,973.70

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Solution

The fourth proportional to 714,252.09, 985,696.29 and 391,973.70 is: 540,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,252.09 : 985,696.29 = 391,973.70 : x
  2. Step 2: Convert to fraction form
    714,252.09/985,696.29 = 391,973.70/x
  3. Step 3: Cross multiply
    714,252.09x = 985,696.29 × 391,973.70
  4. Step 4: Simplify right side
    714,252.09x = 386,367,021,867.57
  5. Step 5: Solve for x
    x = 386,367,021,867.57/714,252.09
  6. Step 6: Final answer
    x = 540,939.29

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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.