Home / 829,320.74-1,144,815.65-557,546.20

Finding the Fourth Proportional to 829,320.74, 1,144,815.65 and 557,546.20

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Solution

The fourth proportional to 829,320.74, 1,144,815.65 and 557,546.20 is: 769,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,320.74 : 1,144,815.65 = 557,546.20 : x
  2. Step 2: Convert to fraction form
    829,320.74/1,144,815.65 = 557,546.20/x
  3. Step 3: Cross multiply
    829,320.74x = 1,144,815.65 × 557,546.20
  4. Step 4: Simplify right side
    829,320.74x = 638,287,611,799.06
  5. Step 5: Solve for x
    x = 638,287,611,799.06/829,320.74
  6. Step 6: Final answer
    x = 769,651.09

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Double scale
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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.