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Finding the Fourth Proportional to 567,801.90, 852,030.90 and 212,851.80

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Solution

The fourth proportional to 567,801.90, 852,030.90 and 212,851.80 is: 319,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,801.90 : 852,030.90 = 212,851.80 : x
  2. Step 2: Convert to fraction form
    567,801.90/852,030.90 = 212,851.80/x
  3. Step 3: Cross multiply
    567,801.90x = 852,030.90 × 212,851.80
  4. Step 4: Simplify right side
    567,801.90x = 181,356,310,720.62
  5. Step 5: Solve for x
    x = 181,356,310,720.62/567,801.90
  6. Step 6: Final answer
    x = 319,400.68

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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.