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Finding the Fourth Proportional to 1,575,357, 2,173,992.66 and 859,965

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Solution

The fourth proportional to 1,575,357, 2,173,992.66 and 859,965 is: 1,186,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575,357 : 2,173,992.66 = 859,965 : x
  2. Step 2: Convert to fraction form
    1,575,357/2,173,992.66 = 859,965/x
  3. Step 3: Cross multiply
    1,575,357x = 2,173,992.66 × 859,965
  4. Step 4: Simplify right side
    1,575,357x = 1,869,557,597,856.90
  5. Step 5: Solve for x
    x = 1,869,557,597,856.90/1,575,357
  6. Step 6: Final answer
    x = 1,186,751.70

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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.