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Finding the Fourth Proportional to 575,515.76, 863,522.32 and 308,965.02

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Solution

The fourth proportional to 575,515.76, 863,522.32 and 308,965.02 is: 463,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,515.76 : 863,522.32 = 308,965.02 : x
  2. Step 2: Convert to fraction form
    575,515.76/863,522.32 = 308,965.02/x
  3. Step 3: Cross multiply
    575,515.76x = 863,522.32 × 308,965.02
  4. Step 4: Simplify right side
    575,515.76x = 266,798,190,869.25
  5. Step 5: Solve for x
    x = 266,798,190,869.25/575,515.76
  6. Step 6: Final answer
    x = 463,581.03

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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.