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Finding the Fourth Proportional to 665,572.95, 996,883.20 and 576,999.45

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Solution

The fourth proportional to 665,572.95, 996,883.20 and 576,999.45 is: 864,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,572.95 : 996,883.20 = 576,999.45 : x
  2. Step 2: Convert to fraction form
    665,572.95/996,883.20 = 576,999.45/x
  3. Step 3: Cross multiply
    665,572.95x = 996,883.20 × 576,999.45
  4. Step 4: Simplify right side
    665,572.95x = 575,201,058,114.24
  5. Step 5: Solve for x
    x = 575,201,058,114.24/665,572.95
  6. Step 6: Final answer
    x = 864,219.40

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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.