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Finding the Fourth Proportional to 615,057.63, 848,779.89 and 343,125.52

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Solution

The fourth proportional to 615,057.63, 848,779.89 and 343,125.52 is: 473,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,057.63 : 848,779.89 = 343,125.52 : x
  2. Step 2: Convert to fraction form
    615,057.63/848,779.89 = 343,125.52/x
  3. Step 3: Cross multiply
    615,057.63x = 848,779.89 × 343,125.52
  4. Step 4: Simplify right side
    615,057.63x = 291,238,041,121.79
  5. Step 5: Solve for x
    x = 291,238,041,121.79/615,057.63
  6. Step 6: Final answer
    x = 473,513.42

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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.