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Finding the Fourth Proportional to 671,117.40, 926,181.84 and 384,655.98

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Solution

The fourth proportional to 671,117.40, 926,181.84 and 384,655.98 is: 530,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,117.40 : 926,181.84 = 384,655.98 : x
  2. Step 2: Convert to fraction form
    671,117.40/926,181.84 = 384,655.98/x
  3. Step 3: Cross multiply
    671,117.40x = 926,181.84 × 384,655.98
  4. Step 4: Simplify right side
    671,117.40x = 356,261,383,323.40
  5. Step 5: Solve for x
    x = 356,261,383,323.40/671,117.40
  6. Step 6: Final answer
    x = 530,848.08

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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.