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Finding the Fourth Proportional to 671,000.30, 926,005.90 and 384,575.66

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Solution

The fourth proportional to 671,000.30, 926,005.90 and 384,575.66 is: 530,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,000.30 : 926,005.90 = 384,575.66 : x
  2. Step 2: Convert to fraction form
    671,000.30/926,005.90 = 384,575.66/x
  3. Step 3: Cross multiply
    671,000.30x = 926,005.90 × 384,575.66
  4. Step 4: Simplify right side
    671,000.30x = 356,119,330,156.39
  5. Step 5: Solve for x
    x = 356,119,330,156.39/671,000.30
  6. Step 6: Final answer
    x = 530,729.02

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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.