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Finding the Fourth Proportional to 445,967.10, 615,434.97 and 242,018.01

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Solution

The fourth proportional to 445,967.10, 615,434.97 and 242,018.01 is: 333,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,967.10 : 615,434.97 = 242,018.01 : x
  2. Step 2: Convert to fraction form
    445,967.10/615,434.97 = 242,018.01/x
  3. Step 3: Cross multiply
    445,967.10x = 615,434.97 × 242,018.01
  4. Step 4: Simplify right side
    445,967.10x = 148,946,346,723.81
  5. Step 5: Solve for x
    x = 148,946,346,723.81/445,967.10
  6. Step 6: Final answer
    x = 333,985.06

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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.