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Finding the Fourth Proportional to 602,380.56, 831,223.56 and 360,656.85

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Solution

The fourth proportional to 602,380.56, 831,223.56 and 360,656.85 is: 497,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,380.56 : 831,223.56 = 360,656.85 : x
  2. Step 2: Convert to fraction form
    602,380.56/831,223.56 = 360,656.85/x
  3. Step 3: Cross multiply
    602,380.56x = 831,223.56 × 360,656.85
  4. Step 4: Simplify right side
    602,380.56x = 299,786,470,795.39
  5. Step 5: Solve for x
    x = 299,786,470,795.39/602,380.56
  6. Step 6: Final answer
    x = 497,669.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.