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Finding the Fourth Proportional to 763,663.50, 1,053,877.50 and 424,153.62

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Solution

The fourth proportional to 763,663.50, 1,053,877.50 and 424,153.62 is: 585,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,663.50 : 1,053,877.50 = 424,153.62 : x
  2. Step 2: Convert to fraction form
    763,663.50/1,053,877.50 = 424,153.62/x
  3. Step 3: Cross multiply
    763,663.50x = 1,053,877.50 × 424,153.62
  4. Step 4: Simplify right side
    763,663.50x = 447,005,956,661.55
  5. Step 5: Solve for x
    x = 447,005,956,661.55/763,663.50
  6. Step 6: Final answer
    x = 585,344.14

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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.