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Finding the Fourth Proportional to 303,610.80, 455,416.20 and 93,248.40

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Solution

The fourth proportional to 303,610.80, 455,416.20 and 93,248.40 is: 139,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,610.80 : 455,416.20 = 93,248.40 : x
  2. Step 2: Convert to fraction form
    303,610.80/455,416.20 = 93,248.40/x
  3. Step 3: Cross multiply
    303,610.80x = 455,416.20 × 93,248.40
  4. Step 4: Simplify right side
    303,610.80x = 42,466,831,984.08
  5. Step 5: Solve for x
    x = 42,466,831,984.08/303,610.80
  6. Step 6: Final answer
    x = 139,872.60

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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.