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Finding the Fourth Proportional to 895,442.76, 1,235,798.19 and 668,694.60

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Solution

The fourth proportional to 895,442.76, 1,235,798.19 and 668,694.60 is: 922,863.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,442.76 : 1,235,798.19 = 668,694.60 : x
  2. Step 2: Convert to fraction form
    895,442.76/1,235,798.19 = 668,694.60/x
  3. Step 3: Cross multiply
    895,442.76x = 1,235,798.19 × 668,694.60
  4. Step 4: Simplify right side
    895,442.76x = 826,371,576,342.77
  5. Step 5: Solve for x
    x = 826,371,576,342.77/895,442.76
  6. Step 6: Final answer
    x = 922,863.65

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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.