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Finding the Fourth Proportional to 632,892.69, 873,400.05 and 346,406.63

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Solution

The fourth proportional to 632,892.69, 873,400.05 and 346,406.63 is: 478,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,892.69 : 873,400.05 = 346,406.63 : x
  2. Step 2: Convert to fraction form
    632,892.69/873,400.05 = 346,406.63/x
  3. Step 3: Cross multiply
    632,892.69x = 873,400.05 × 346,406.63
  4. Step 4: Simplify right side
    632,892.69x = 302,551,563,595.33
  5. Step 5: Solve for x
    x = 302,551,563,595.33/632,892.69
  6. Step 6: Final answer
    x = 478,045.60

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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.