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Finding the Fourth Proportional to 615,141.21, 848,893.70 and 343,192.93

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Solution

The fourth proportional to 615,141.21, 848,893.70 and 343,192.93 is: 473,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,141.21 : 848,893.70 = 343,192.93 : x
  2. Step 2: Convert to fraction form
    615,141.21/848,893.70 = 343,192.93/x
  3. Step 3: Cross multiply
    615,141.21x = 848,893.70 × 343,192.93
  4. Step 4: Simplify right side
    615,141.21x = 291,334,314,897.29
  5. Step 5: Solve for x
    x = 291,334,314,897.29/615,141.21
  6. Step 6: Final answer
    x = 473,605.59

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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.