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Finding the Fourth Proportional to 603,119.55, 908,915.10 and 543,223.11

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Solution

The fourth proportional to 603,119.55, 908,915.10 and 543,223.11 is: 818,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,119.55 : 908,915.10 = 543,223.11 : x
  2. Step 2: Convert to fraction form
    603,119.55/908,915.10 = 543,223.11/x
  3. Step 3: Cross multiply
    603,119.55x = 908,915.10 × 543,223.11
  4. Step 4: Simplify right side
    603,119.55x = 493,743,687,347.96
  5. Step 5: Solve for x
    x = 493,743,687,347.96/603,119.55
  6. Step 6: Final answer
    x = 818,649.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.