Home / 647,838.19-893,818.56-375,811.84

Finding the Fourth Proportional to 647,838.19, 893,818.56 and 375,811.84

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Solution

The fourth proportional to 647,838.19, 893,818.56 and 375,811.84 is: 518,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,838.19 : 893,818.56 = 375,811.84 : x
  2. Step 2: Convert to fraction form
    647,838.19/893,818.56 = 375,811.84/x
  3. Step 3: Cross multiply
    647,838.19x = 893,818.56 × 375,811.84
  4. Step 4: Simplify right side
    647,838.19x = 335,907,597,659.75
  5. Step 5: Solve for x
    x = 335,907,597,659.75/647,838.19
  6. Step 6: Final answer
    x = 518,505.40

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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.