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Finding the Fourth Proportional to 807,503.34, 1,114,380 and 463,402.38

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Solution

The fourth proportional to 807,503.34, 1,114,380 and 463,402.38 is: 639,509.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,503.34 : 1,114,380 = 463,402.38 : x
  2. Step 2: Convert to fraction form
    807,503.34/1,114,380 = 463,402.38/x
  3. Step 3: Cross multiply
    807,503.34x = 1,114,380 × 463,402.38
  4. Step 4: Simplify right side
    807,503.34x = 516,406,344,224.40
  5. Step 5: Solve for x
    x = 516,406,344,224.40/807,503.34
  6. Step 6: Final answer
    x = 639,509.86

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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.