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Finding the Fourth Proportional to 664,031.84, 916,362.86 and 362,225.84

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Solution

The fourth proportional to 664,031.84, 916,362.86 and 362,225.84 is: 499,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,031.84 : 916,362.86 = 362,225.84 : x
  2. Step 2: Convert to fraction form
    664,031.84/916,362.86 = 362,225.84/x
  3. Step 3: Cross multiply
    664,031.84x = 916,362.86 × 362,225.84
  4. Step 4: Simplify right side
    664,031.84x = 331,930,306,708.30
  5. Step 5: Solve for x
    x = 331,930,306,708.30/664,031.84
  6. Step 6: Final answer
    x = 499,871.07

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1.5x scale

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.