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Finding the Fourth Proportional to 567,326.10, 850,989.15 and 520,086.90

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Solution

The fourth proportional to 567,326.10, 850,989.15 and 520,086.90 is: 780,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,326.10 : 850,989.15 = 520,086.90 : x
  2. Step 2: Convert to fraction form
    567,326.10/850,989.15 = 520,086.90/x
  3. Step 3: Cross multiply
    567,326.10x = 850,989.15 × 520,086.90
  4. Step 4: Simplify right side
    567,326.10x = 442,588,308,957.14
  5. Step 5: Solve for x
    x = 442,588,308,957.14/567,326.10
  6. Step 6: Final answer
    x = 780,130.35

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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.