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Finding the Fourth Proportional to 463,631.20, 695,446.80 and 358,655.20

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Solution

The fourth proportional to 463,631.20, 695,446.80 and 358,655.20 is: 537,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,631.20 : 695,446.80 = 358,655.20 : x
  2. Step 2: Convert to fraction form
    463,631.20/695,446.80 = 358,655.20/x
  3. Step 3: Cross multiply
    463,631.20x = 695,446.80 × 358,655.20
  4. Step 4: Simplify right side
    463,631.20x = 249,425,611,143.36
  5. Step 5: Solve for x
    x = 249,425,611,143.36/463,631.20
  6. Step 6: Final answer
    x = 537,982.80

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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.