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Finding the Fourth Proportional to 572,592.80, 858,986.40 and 173,230.40

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Solution

The fourth proportional to 572,592.80, 858,986.40 and 173,230.40 is: 259,875.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,592.80 : 858,986.40 = 173,230.40 : x
  2. Step 2: Convert to fraction form
    572,592.80/858,986.40 = 173,230.40/x
  3. Step 3: Cross multiply
    572,592.80x = 858,986.40 × 173,230.40
  4. Step 4: Simplify right side
    572,592.80x = 148,802,557,666.56
  5. Step 5: Solve for x
    x = 148,802,557,666.56/572,592.80
  6. Step 6: Final answer
    x = 259,875.01

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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.