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Finding the Fourth Proportional to 1,575,803.88, 2,364,444 and 776,649.78

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Solution

The fourth proportional to 1,575,803.88, 2,364,444 and 776,649.78 is: 1,165,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575,803.88 : 2,364,444 = 776,649.78 : x
  2. Step 2: Convert to fraction form
    1,575,803.88/2,364,444 = 776,649.78/x
  3. Step 3: Cross multiply
    1,575,803.88x = 2,364,444 × 776,649.78
  4. Step 4: Simplify right side
    1,575,803.88x = 1,836,344,912,422.32
  5. Step 5: Solve for x
    x = 1,836,344,912,422.32/1,575,803.88
  6. Step 6: Final answer
    x = 1,165,338.49

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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.