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Finding the Fourth Proportional to 573,075.60, 860,002.20 and 372,908.40

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Solution

The fourth proportional to 573,075.60, 860,002.20 and 372,908.40 is: 559,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,075.60 : 860,002.20 = 372,908.40 : x
  2. Step 2: Convert to fraction form
    573,075.60/860,002.20 = 372,908.40/x
  3. Step 3: Cross multiply
    573,075.60x = 860,002.20 × 372,908.40
  4. Step 4: Simplify right side
    573,075.60x = 320,702,044,398.48
  5. Step 5: Solve for x
    x = 320,702,044,398.48/573,075.60
  6. Step 6: Final answer
    x = 559,615.60

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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.