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Finding the Fourth Proportional to 427,807.58, 590,378.83 and 236,816.87

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Solution

The fourth proportional to 427,807.58, 590,378.83 and 236,816.87 is: 326,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,807.58 : 590,378.83 = 236,816.87 : x
  2. Step 2: Convert to fraction form
    427,807.58/590,378.83 = 236,816.87/x
  3. Step 3: Cross multiply
    427,807.58x = 590,378.83 × 236,816.87
  4. Step 4: Simplify right side
    427,807.58x = 139,811,663,090.93
  5. Step 5: Solve for x
    x = 139,811,663,090.93/427,807.58
  6. Step 6: Final answer
    x = 326,809.69

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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.