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Finding the Fourth Proportional to 561,012.84, 841,825.50 and 324,816.84

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Solution

The fourth proportional to 561,012.84, 841,825.50 and 324,816.84 is: 487,402.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,012.84 : 841,825.50 = 324,816.84 : x
  2. Step 2: Convert to fraction form
    561,012.84/841,825.50 = 324,816.84/x
  3. Step 3: Cross multiply
    561,012.84x = 841,825.50 × 324,816.84
  4. Step 4: Simplify right side
    561,012.84x = 273,439,098,741.42
  5. Step 5: Solve for x
    x = 273,439,098,741.42/561,012.84
  6. Step 6: Final answer
    x = 487,402.57

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1.5x scale

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.