Home / 714,223.17-985,588.71-391,907.82

Finding the Fourth Proportional to 714,223.17, 985,588.71 and 391,907.82

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Solution

The fourth proportional to 714,223.17, 985,588.71 and 391,907.82 is: 540,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,223.17 : 985,588.71 = 391,907.82 : x
  2. Step 2: Convert to fraction form
    714,223.17/985,588.71 = 391,907.82/x
  3. Step 3: Cross multiply
    714,223.17x = 985,588.71 × 391,907.82
  4. Step 4: Simplify right side
    714,223.17x = 386,259,921,639.56
  5. Step 5: Solve for x
    x = 386,259,921,639.56/714,223.17
  6. Step 6: Final answer
    x = 540,811.24

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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.