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Finding the Fourth Proportional to 555,964.10, 767,774.82 and 474,919.28

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Solution

The fourth proportional to 555,964.10, 767,774.82 and 474,919.28 is: 655,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,964.10 : 767,774.82 = 474,919.28 : x
  2. Step 2: Convert to fraction form
    555,964.10/767,774.82 = 474,919.28/x
  3. Step 3: Cross multiply
    555,964.10x = 767,774.82 × 474,919.28
  4. Step 4: Simplify right side
    555,964.10x = 364,631,064,716.53
  5. Step 5: Solve for x
    x = 364,631,064,716.53/555,964.10
  6. Step 6: Final answer
    x = 655,853.61

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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.