Home / 557,827.61-769,799.40-303,178.80

Finding the Fourth Proportional to 557,827.61, 769,799.40 and 303,178.80

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Solution

The fourth proportional to 557,827.61, 769,799.40 and 303,178.80 is: 418,385.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,827.61 : 769,799.40 = 303,178.80 : x
  2. Step 2: Convert to fraction form
    557,827.61/769,799.40 = 303,178.80/x
  3. Step 3: Cross multiply
    557,827.61x = 769,799.40 × 303,178.80
  4. Step 4: Simplify right side
    557,827.61x = 233,386,855,752.43
  5. Step 5: Solve for x
    x = 233,386,855,752.43/557,827.61
  6. Step 6: Final answer
    x = 418,385.27

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Double scale
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Similar ratio
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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.