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Finding the Fourth Proportional to 590,627.80, 885,941.70 and 587,128.60

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Solution

The fourth proportional to 590,627.80, 885,941.70 and 587,128.60 is: 880,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,627.80 : 885,941.70 = 587,128.60 : x
  2. Step 2: Convert to fraction form
    590,627.80/885,941.70 = 587,128.60/x
  3. Step 3: Cross multiply
    590,627.80x = 885,941.70 × 587,128.60
  4. Step 4: Simplify right side
    590,627.80x = 520,161,710,002.62
  5. Step 5: Solve for x
    x = 520,161,710,002.62/590,627.80
  6. Step 6: Final answer
    x = 880,692.90

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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.