Home / 694,070.28-957,810.24-388,143.18

Finding the Fourth Proportional to 694,070.28, 957,810.24 and 388,143.18

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Solution

The fourth proportional to 694,070.28, 957,810.24 and 388,143.18 is: 535,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,070.28 : 957,810.24 = 388,143.18 : x
  2. Step 2: Convert to fraction form
    694,070.28/957,810.24 = 388,143.18/x
  3. Step 3: Cross multiply
    694,070.28x = 957,810.24 × 388,143.18
  4. Step 4: Simplify right side
    694,070.28x = 371,767,512,390.16
  5. Step 5: Solve for x
    x = 371,767,512,390.16/694,070.28
  6. Step 6: Final answer
    x = 535,633.82

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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.