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Finding the Fourth Proportional to 443,864.32, 612,533.28 and 242,660.32

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Solution

The fourth proportional to 443,864.32, 612,533.28 and 242,660.32 is: 334,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,864.32 : 612,533.28 = 242,660.32 : x
  2. Step 2: Convert to fraction form
    443,864.32/612,533.28 = 242,660.32/x
  3. Step 3: Cross multiply
    443,864.32x = 612,533.28 × 242,660.32
  4. Step 4: Simplify right side
    443,864.32x = 148,637,521,735.45
  5. Step 5: Solve for x
    x = 148,637,521,735.45/443,864.32
  6. Step 6: Final answer
    x = 334,871.53

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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.