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Finding the Fourth Proportional to 584,791.40, 877,532.70 and 426,621.80

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Solution

The fourth proportional to 584,791.40, 877,532.70 and 426,621.80 is: 640,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,791.40 : 877,532.70 = 426,621.80 : x
  2. Step 2: Convert to fraction form
    584,791.40/877,532.70 = 426,621.80/x
  3. Step 3: Cross multiply
    584,791.40x = 877,532.70 × 426,621.80
  4. Step 4: Simplify right side
    584,791.40x = 374,374,580,032.86
  5. Step 5: Solve for x
    x = 374,374,580,032.86/584,791.40
  6. Step 6: Final answer
    x = 640,184.82

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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.