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Finding the Fourth Proportional to 419,030.91, 578,275.71 and 237,750.48

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Solution

The fourth proportional to 419,030.91, 578,275.71 and 237,750.48 is: 328,103.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,030.91 : 578,275.71 = 237,750.48 : x
  2. Step 2: Convert to fraction form
    419,030.91/578,275.71 = 237,750.48/x
  3. Step 3: Cross multiply
    419,030.91x = 578,275.71 × 237,750.48
  4. Step 4: Simplify right side
    419,030.91x = 137,485,327,624.84
  5. Step 5: Solve for x
    x = 137,485,327,624.84/419,030.91
  6. Step 6: Final answer
    x = 328,103.07

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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.