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Finding the Fourth Proportional to 530,519.06, 732,114.24 and 288,800.76

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Solution

The fourth proportional to 530,519.06, 732,114.24 and 288,800.76 is: 398,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,519.06 : 732,114.24 = 288,800.76 : x
  2. Step 2: Convert to fraction form
    530,519.06/732,114.24 = 288,800.76/x
  3. Step 3: Cross multiply
    530,519.06x = 732,114.24 × 288,800.76
  4. Step 4: Simplify right side
    530,519.06x = 211,435,148,918.82
  5. Step 5: Solve for x
    x = 211,435,148,918.82/530,519.06
  6. Step 6: Final answer
    x = 398,543.93

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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.