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Finding the Fourth Proportional to 662,738.40, 994,237.20 and 283,658.40

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Solution

The fourth proportional to 662,738.40, 994,237.20 and 283,658.40 is: 425,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,738.40 : 994,237.20 = 283,658.40 : x
  2. Step 2: Convert to fraction form
    662,738.40/994,237.20 = 283,658.40/x
  3. Step 3: Cross multiply
    662,738.40x = 994,237.20 × 283,658.40
  4. Step 4: Simplify right side
    662,738.40x = 282,023,733,372.48
  5. Step 5: Solve for x
    x = 282,023,733,372.48/662,738.40
  6. Step 6: Final answer
    x = 425,543.07

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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.