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Finding the Fourth Proportional to 303,631.70, 455,447.55 and 93,280.10

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Solution

The fourth proportional to 303,631.70, 455,447.55 and 93,280.10 is: 139,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,631.70 : 455,447.55 = 93,280.10 : x
  2. Step 2: Convert to fraction form
    303,631.70/455,447.55 = 93,280.10/x
  3. Step 3: Cross multiply
    303,631.70x = 455,447.55 × 93,280.10
  4. Step 4: Simplify right side
    303,631.70x = 42,484,193,008.76
  5. Step 5: Solve for x
    x = 42,484,193,008.76/303,631.70
  6. Step 6: Final answer
    x = 139,920.15

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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.