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Finding the Fourth Proportional to 573,088.20, 859,329.90 and 193,878.60

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Solution

The fourth proportional to 573,088.20, 859,329.90 and 193,878.60 is: 290,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,088.20 : 859,329.90 = 193,878.60 : x
  2. Step 2: Convert to fraction form
    573,088.20/859,329.90 = 193,878.60/x
  3. Step 3: Cross multiply
    573,088.20x = 859,329.90 × 193,878.60
  4. Step 4: Simplify right side
    573,088.20x = 166,605,677,950.14
  5. Step 5: Solve for x
    x = 166,605,677,950.14/573,088.20
  6. Step 6: Final answer
    x = 290,715.60

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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.