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Finding the Fourth Proportional to 603,655.84, 905,647.38 and 537,554.98

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Solution

The fourth proportional to 603,655.84, 905,647.38 and 537,554.98 is: 806,478.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,655.84 : 905,647.38 = 537,554.98 : x
  2. Step 2: Convert to fraction form
    603,655.84/905,647.38 = 537,554.98/x
  3. Step 3: Cross multiply
    603,655.84x = 905,647.38 × 537,554.98
  4. Step 4: Simplify right side
    603,655.84x = 486,835,259,242.95
  5. Step 5: Solve for x
    x = 486,835,259,242.95/603,655.84
  6. Step 6: Final answer
    x = 806,478.17

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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.