Home / 864,099.70-1,296,149.55-549,949.30

Finding the Fourth Proportional to 864,099.70, 1,296,149.55 and 549,949.30

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Solution

The fourth proportional to 864,099.70, 1,296,149.55 and 549,949.30 is: 824,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,099.70 : 1,296,149.55 = 549,949.30 : x
  2. Step 2: Convert to fraction form
    864,099.70/1,296,149.55 = 549,949.30/x
  3. Step 3: Cross multiply
    864,099.70x = 1,296,149.55 × 549,949.30
  4. Step 4: Simplify right side
    864,099.70x = 712,816,537,717.82
  5. Step 5: Solve for x
    x = 712,816,537,717.82/864,099.70
  6. Step 6: Final answer
    x = 824,923.95

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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.