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Finding the Fourth Proportional to 405,847.20, 608,875.20 and 237,509.76

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Solution

The fourth proportional to 405,847.20, 608,875.20 and 237,509.76 is: 356,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,847.20 : 608,875.20 = 237,509.76 : x
  2. Step 2: Convert to fraction form
    405,847.20/608,875.20 = 237,509.76/x
  3. Step 3: Cross multiply
    405,847.20x = 608,875.20 × 237,509.76
  4. Step 4: Simplify right side
    405,847.20x = 144,613,802,621.95
  5. Step 5: Solve for x
    x = 144,613,802,621.95/405,847.20
  6. Step 6: Final answer
    x = 356,325.74

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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.