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Finding the Fourth Proportional to 876,968, 1,210,216.92 and 474,560

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Solution

The fourth proportional to 876,968, 1,210,216.92 and 474,560 is: 654,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,968 : 1,210,216.92 = 474,560 : x
  2. Step 2: Convert to fraction form
    876,968/1,210,216.92 = 474,560/x
  3. Step 3: Cross multiply
    876,968x = 1,210,216.92 × 474,560
  4. Step 4: Simplify right side
    876,968x = 574,320,541,555.20
  5. Step 5: Solve for x
    x = 574,320,541,555.20/876,968
  6. Step 6: Final answer
    x = 654,893.38

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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.