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Finding the Fourth Proportional to 615,057.23, 848,779.33 and 343,125.11

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Solution

The fourth proportional to 615,057.23, 848,779.33 and 343,125.11 is: 473,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,057.23 : 848,779.33 = 343,125.11 : x
  2. Step 2: Convert to fraction form
    615,057.23/848,779.33 = 343,125.11/x
  3. Step 3: Cross multiply
    615,057.23x = 848,779.33 × 343,125.11
  4. Step 4: Simplify right side
    615,057.23x = 291,237,502,236.11
  5. Step 5: Solve for x
    x = 291,237,502,236.11/615,057.23
  6. Step 6: Final answer
    x = 473,512.85

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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.