Home / 925,135.36-1,387,907.20-393,111.16

Finding the Fourth Proportional to 925,135.36, 1,387,907.20 and 393,111.16

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Solution

The fourth proportional to 925,135.36, 1,387,907.20 and 393,111.16 is: 589,753.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,135.36 : 1,387,907.20 = 393,111.16 : x
  2. Step 2: Convert to fraction form
    925,135.36/1,387,907.20 = 393,111.16/x
  3. Step 3: Cross multiply
    925,135.36x = 1,387,907.20 × 393,111.16
  4. Step 4: Simplify right side
    925,135.36x = 545,601,809,364.35
  5. Step 5: Solve for x
    x = 545,601,809,364.35/925,135.36
  6. Step 6: Final answer
    x = 589,753.49

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Double scale
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1.5x scale

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.