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Finding the Fourth Proportional to 572,859.74, 859,178.90 and 544,409.61

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Solution

The fourth proportional to 572,859.74, 859,178.90 and 544,409.61 is: 816,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,859.74 : 859,178.90 = 544,409.61 : x
  2. Step 2: Convert to fraction form
    572,859.74/859,178.90 = 544,409.61/x
  3. Step 3: Cross multiply
    572,859.74x = 859,178.90 × 544,409.61
  4. Step 4: Simplify right side
    572,859.74x = 467,745,244,946.03
  5. Step 5: Solve for x
    x = 467,745,244,946.03/572,859.74
  6. Step 6: Final answer
    x = 816,509.19

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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.