Home / 495,155.61-683,331.12-280,291.23

Finding the Fourth Proportional to 495,155.61, 683,331.12 and 280,291.23

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Solution

The fourth proportional to 495,155.61, 683,331.12 and 280,291.23 is: 386,811.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,155.61 : 683,331.12 = 280,291.23 : x
  2. Step 2: Convert to fraction form
    495,155.61/683,331.12 = 280,291.23/x
  3. Step 3: Cross multiply
    495,155.61x = 683,331.12 × 280,291.23
  4. Step 4: Simplify right side
    495,155.61x = 191,531,720,122.08
  5. Step 5: Solve for x
    x = 191,531,720,122.08/495,155.61
  6. Step 6: Final answer
    x = 386,811.17

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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.