Home / 916,961.40-1,376,098.20-384,864.30

Finding the Fourth Proportional to 916,961.40, 1,376,098.20 and 384,864.30

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Solution

The fourth proportional to 916,961.40, 1,376,098.20 and 384,864.30 is: 577,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,961.40 : 1,376,098.20 = 384,864.30 : x
  2. Step 2: Convert to fraction form
    916,961.40/1,376,098.20 = 384,864.30/x
  3. Step 3: Cross multiply
    916,961.40x = 1,376,098.20 × 384,864.30
  4. Step 4: Simplify right side
    916,961.40x = 529,611,070,474.26
  5. Step 5: Solve for x
    x = 529,611,070,474.26/916,961.40
  6. Step 6: Final answer
    x = 577,571.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.