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Finding the Fourth Proportional to 560,503.40, 840,889.50 and 161,136.04

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Solution

The fourth proportional to 560,503.40, 840,889.50 and 161,136.04 is: 241,742.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,503.40 : 840,889.50 = 161,136.04 : x
  2. Step 2: Convert to fraction form
    560,503.40/840,889.50 = 161,136.04/x
  3. Step 3: Cross multiply
    560,503.40x = 840,889.50 × 161,136.04
  4. Step 4: Simplify right side
    560,503.40x = 135,497,604,107.58
  5. Step 5: Solve for x
    x = 135,497,604,107.58/560,503.40
  6. Step 6: Final answer
    x = 241,742.70

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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.