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Finding the Fourth Proportional to 567,022.50, 850,535.64 and 388,989.90

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Solution

The fourth proportional to 567,022.50, 850,535.64 and 388,989.90 is: 583,486.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,022.50 : 850,535.64 = 388,989.90 : x
  2. Step 2: Convert to fraction form
    567,022.50/850,535.64 = 388,989.90/x
  3. Step 3: Cross multiply
    567,022.50x = 850,535.64 × 388,989.90
  4. Step 4: Simplify right side
    567,022.50x = 330,849,773,550.04
  5. Step 5: Solve for x
    x = 330,849,773,550.04/567,022.50
  6. Step 6: Final answer
    x = 583,486.15

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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.