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Finding the Fourth Proportional to 567,051.90, 850,905.90 and 212,101.80

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Solution

The fourth proportional to 567,051.90, 850,905.90 and 212,101.80 is: 318,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,051.90 : 850,905.90 = 212,101.80 : x
  2. Step 2: Convert to fraction form
    567,051.90/850,905.90 = 212,101.80/x
  3. Step 3: Cross multiply
    567,051.90x = 850,905.90 × 212,101.80
  4. Step 4: Simplify right side
    567,051.90x = 180,478,673,020.62
  5. Step 5: Solve for x
    x = 180,478,673,020.62/567,051.90
  6. Step 6: Final answer
    x = 318,275.40

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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.