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Finding the Fourth Proportional to 407,803.01, 611,957.13 and 237,105.06

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Solution

The fourth proportional to 407,803.01, 611,957.13 and 237,105.06 is: 355,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,803.01 : 611,957.13 = 237,105.06 : x
  2. Step 2: Convert to fraction form
    407,803.01/611,957.13 = 237,105.06/x
  3. Step 3: Cross multiply
    407,803.01x = 611,957.13 × 237,105.06
  4. Step 4: Simplify right side
    407,803.01x = 145,098,128,842.10
  5. Step 5: Solve for x
    x = 145,098,128,842.10/407,803.01
  6. Step 6: Final answer
    x = 355,804.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.