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Finding the Fourth Proportional to 668,244.60, 999,972.43 and 578,596.59

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Solution

The fourth proportional to 668,244.60, 999,972.43 and 578,596.59 is: 865,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,244.60 : 999,972.43 = 578,596.59 : x
  2. Step 2: Convert to fraction form
    668,244.60/999,972.43 = 578,596.59/x
  3. Step 3: Cross multiply
    668,244.60x = 999,972.43 × 578,596.59
  4. Step 4: Simplify right side
    668,244.60x = 578,580,638,092.01
  5. Step 5: Solve for x
    x = 578,580,638,092.01/668,244.60
  6. Step 6: Final answer
    x = 865,821.64

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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.