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Finding the Fourth Proportional to 367,931.52, 507,783.36 and 206,801.28

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Solution

The fourth proportional to 367,931.52, 507,783.36 and 206,801.28 is: 285,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,931.52 : 507,783.36 = 206,801.28 : x
  2. Step 2: Convert to fraction form
    367,931.52/507,783.36 = 206,801.28/x
  3. Step 3: Cross multiply
    367,931.52x = 507,783.36 × 206,801.28
  4. Step 4: Simplify right side
    367,931.52x = 105,010,248,810.70
  5. Step 5: Solve for x
    x = 105,010,248,810.70/367,931.52
  6. Step 6: Final answer
    x = 285,407.05

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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.