Home / 683,746.57-943,418.71-393,340.31

Finding the Fourth Proportional to 683,746.57, 943,418.71 and 393,340.31

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Solution

The fourth proportional to 683,746.57, 943,418.71 and 393,340.31 is: 542,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,746.57 : 943,418.71 = 393,340.31 : x
  2. Step 2: Convert to fraction form
    683,746.57/943,418.71 = 393,340.31/x
  3. Step 3: Cross multiply
    683,746.57x = 943,418.71 × 393,340.31
  4. Step 4: Simplify right side
    683,746.57x = 371,084,607,851.20
  5. Step 5: Solve for x
    x = 371,084,607,851.20/683,746.57
  6. Step 6: Final answer
    x = 542,722.44

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1.5x scale

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.