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Finding the Fourth Proportional to 257,869.84, 386,798.64 and 151,925.68

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Solution

The fourth proportional to 257,869.84, 386,798.64 and 151,925.68 is: 227,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,869.84 : 386,798.64 = 151,925.68 : x
  2. Step 2: Convert to fraction form
    257,869.84/386,798.64 = 151,925.68/x
  3. Step 3: Cross multiply
    257,869.84x = 386,798.64 × 151,925.68
  4. Step 4: Simplify right side
    257,869.84x = 58,764,646,405.08
  5. Step 5: Solve for x
    x = 58,764,646,405.08/257,869.84
  6. Step 6: Final answer
    x = 227,884.91

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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.