Home / 699,905.04-966,026.97-428,199.45

Finding the Fourth Proportional to 699,905.04, 966,026.97 and 428,199.45

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Solution

The fourth proportional to 699,905.04, 966,026.97 and 428,199.45 is: 591,011.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,905.04 : 966,026.97 = 428,199.45 : x
  2. Step 2: Convert to fraction form
    699,905.04/966,026.97 = 428,199.45/x
  3. Step 3: Cross multiply
    699,905.04x = 966,026.97 × 428,199.45
  4. Step 4: Simplify right side
    699,905.04x = 413,652,217,239.17
  5. Step 5: Solve for x
    x = 413,652,217,239.17/699,905.04
  6. Step 6: Final answer
    x = 591,011.91

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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.