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Finding the Fourth Proportional to 535,763.05, 803,613.27 and 391,814.67

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Solution

The fourth proportional to 535,763.05, 803,613.27 and 391,814.67 is: 587,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,763.05 : 803,613.27 = 391,814.67 : x
  2. Step 2: Convert to fraction form
    535,763.05/803,613.27 = 391,814.67/x
  3. Step 3: Cross multiply
    535,763.05x = 803,613.27 × 391,814.67
  4. Step 4: Simplify right side
    535,763.05x = 314,867,465,951.24
  5. Step 5: Solve for x
    x = 314,867,465,951.24/535,763.05
  6. Step 6: Final answer
    x = 587,699.11

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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.