Home / 849,145.87-1,273,677.15-316,625.23

Finding the Fourth Proportional to 849,145.87, 1,273,677.15 and 316,625.23

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Solution

The fourth proportional to 849,145.87, 1,273,677.15 and 316,625.23 is: 474,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,145.87 : 1,273,677.15 = 316,625.23 : x
  2. Step 2: Convert to fraction form
    849,145.87/1,273,677.15 = 316,625.23/x
  3. Step 3: Cross multiply
    849,145.87x = 1,273,677.15 × 316,625.23
  4. Step 4: Simplify right side
    849,145.87x = 403,278,320,564.49
  5. Step 5: Solve for x
    x = 403,278,320,564.49/849,145.87
  6. Step 6: Final answer
    x = 474,922.31

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Double scale
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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.