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Finding the Fourth Proportional to 584,645.43, 877,245.72 and 405,007.30

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Solution

The fourth proportional to 584,645.43, 877,245.72 and 405,007.30 is: 607,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,645.43 : 877,245.72 = 405,007.30 : x
  2. Step 2: Convert to fraction form
    584,645.43/877,245.72 = 405,007.30/x
  3. Step 3: Cross multiply
    584,645.43x = 877,245.72 × 405,007.30
  4. Step 4: Simplify right side
    584,645.43x = 355,290,922,444.25
  5. Step 5: Solve for x
    x = 355,290,922,444.25/584,645.43
  6. Step 6: Final answer
    x = 607,703.24

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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.