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Finding the Fourth Proportional to 443,903.52, 667,298.76 and 356,117.40

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Solution

The fourth proportional to 443,903.52, 667,298.76 and 356,117.40 is: 535,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,903.52 : 667,298.76 = 356,117.40 : x
  2. Step 2: Convert to fraction form
    443,903.52/667,298.76 = 356,117.40/x
  3. Step 3: Cross multiply
    443,903.52x = 667,298.76 × 356,117.40
  4. Step 4: Simplify right side
    443,903.52x = 237,636,699,434.42
  5. Step 5: Solve for x
    x = 237,636,699,434.42/443,903.52
  6. Step 6: Final answer
    x = 535,334.12

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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.