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Finding the Fourth Proportional to 415,802.10, 623,703.15 and 415,802.10

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Solution

The fourth proportional to 415,802.10, 623,703.15 and 415,802.10 is: 623,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,802.10 : 623,703.15 = 415,802.10 : x
  2. Step 2: Convert to fraction form
    415,802.10/623,703.15 = 415,802.10/x
  3. Step 3: Cross multiply
    415,802.10x = 623,703.15 × 415,802.10
  4. Step 4: Simplify right side
    415,802.10x = 259,337,079,546.62
  5. Step 5: Solve for x
    x = 259,337,079,546.62/415,802.10
  6. Step 6: Final answer
    x = 623,703.15

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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.