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Finding the Fourth Proportional to 572,114.60, 858,171.90 and 545,870.60

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Solution

The fourth proportional to 572,114.60, 858,171.90 and 545,870.60 is: 818,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,114.60 : 858,171.90 = 545,870.60 : x
  2. Step 2: Convert to fraction form
    572,114.60/858,171.90 = 545,870.60/x
  3. Step 3: Cross multiply
    572,114.60x = 858,171.90 × 545,870.60
  4. Step 4: Simplify right side
    572,114.60x = 468,450,809,956.14
  5. Step 5: Solve for x
    x = 468,450,809,956.14/572,114.60
  6. Step 6: Final answer
    x = 818,805.90

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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.