Home / 579,038.58-868,733.46-279,463.32

Finding the Fourth Proportional to 579,038.58, 868,733.46 and 279,463.32

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Solution

The fourth proportional to 579,038.58, 868,733.46 and 279,463.32 is: 419,279.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,038.58 : 868,733.46 = 279,463.32 : x
  2. Step 2: Convert to fraction form
    579,038.58/868,733.46 = 279,463.32/x
  3. Step 3: Cross multiply
    579,038.58x = 868,733.46 × 279,463.32
  4. Step 4: Simplify right side
    579,038.58x = 242,779,136,926.69
  5. Step 5: Solve for x
    x = 242,779,136,926.69/579,038.58
  6. Step 6: Final answer
    x = 419,279.73

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.