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Finding the Fourth Proportional to 604,420.61, 905,487.98 and 357,206.54

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Solution

The fourth proportional to 604,420.61, 905,487.98 and 357,206.54 is: 535,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,420.61 : 905,487.98 = 357,206.54 : x
  2. Step 2: Convert to fraction form
    604,420.61/905,487.98 = 357,206.54/x
  3. Step 3: Cross multiply
    604,420.61x = 905,487.98 × 357,206.54
  4. Step 4: Simplify right side
    604,420.61x = 323,446,222,033.92
  5. Step 5: Solve for x
    x = 323,446,222,033.92/604,420.61
  6. Step 6: Final answer
    x = 535,134.34

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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.