Home / 688,602.38-1,032,963.10-189,966.38

Finding the Fourth Proportional to 688,602.38, 1,032,963.10 and 189,966.38

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Solution

The fourth proportional to 688,602.38, 1,032,963.10 and 189,966.38 is: 284,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,602.38 : 1,032,963.10 = 189,966.38 : x
  2. Step 2: Convert to fraction form
    688,602.38/1,032,963.10 = 189,966.38/x
  3. Step 3: Cross multiply
    688,602.38x = 1,032,963.10 × 189,966.38
  4. Step 4: Simplify right side
    688,602.38x = 196,228,255,140.85
  5. Step 5: Solve for x
    x = 196,228,255,140.85/688,602.38
  6. Step 6: Final answer
    x = 284,965.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.