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Finding the Fourth Proportional to 615,587.67, 849,553.77 and 343,709.01

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Solution

The fourth proportional to 615,587.67, 849,553.77 and 343,709.01 is: 474,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,587.67 : 849,553.77 = 343,709.01 : x
  2. Step 2: Convert to fraction form
    615,587.67/849,553.77 = 343,709.01/x
  3. Step 3: Cross multiply
    615,587.67x = 849,553.77 × 343,709.01
  4. Step 4: Simplify right side
    615,587.67x = 291,999,285,228.47
  5. Step 5: Solve for x
    x = 291,999,285,228.47/615,587.67
  6. Step 6: Final answer
    x = 474,342.32

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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.