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Finding the Fourth Proportional to 535,899.99, 803,099.25 and 402,695.22

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Solution

The fourth proportional to 535,899.99, 803,099.25 and 402,695.22 is: 603,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,899.99 : 803,099.25 = 402,695.22 : x
  2. Step 2: Convert to fraction form
    535,899.99/803,099.25 = 402,695.22/x
  3. Step 3: Cross multiply
    535,899.99x = 803,099.25 × 402,695.22
  4. Step 4: Simplify right side
    535,899.99x = 323,404,229,160.59
  5. Step 5: Solve for x
    x = 323,404,229,160.59/535,899.99
  6. Step 6: Final answer
    x = 603,478.70

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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.