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Finding the Fourth Proportional to 662,238.40, 913,861.98 and 375,752.32

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Solution

The fourth proportional to 662,238.40, 913,861.98 and 375,752.32 is: 518,522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,238.40 : 913,861.98 = 375,752.32 : x
  2. Step 2: Convert to fraction form
    662,238.40/913,861.98 = 375,752.32/x
  3. Step 3: Cross multiply
    662,238.40x = 913,861.98 × 375,752.32
  4. Step 4: Simplify right side
    662,238.40x = 343,385,759,144.79
  5. Step 5: Solve for x
    x = 343,385,759,144.79/662,238.40
  6. Step 6: Final answer
    x = 518,522.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.