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Finding the Fourth Proportional to 630,511.96, 943,548.90 and 393,966.04

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Solution

The fourth proportional to 630,511.96, 943,548.90 and 393,966.04 is: 589,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,511.96 : 943,548.90 = 393,966.04 : x
  2. Step 2: Convert to fraction form
    630,511.96/943,548.90 = 393,966.04/x
  3. Step 3: Cross multiply
    630,511.96x = 943,548.90 × 393,966.04
  4. Step 4: Simplify right side
    630,511.96x = 371,726,223,679.36
  5. Step 5: Solve for x
    x = 371,726,223,679.36/630,511.96
  6. Step 6: Final answer
    x = 589,562.53

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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.