Home / 927,346.40-1,279,786.08-519,424.40

Finding the Fourth Proportional to 927,346.40, 1,279,786.08 and 519,424.40

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Solution

The fourth proportional to 927,346.40, 1,279,786.08 and 519,424.40 is: 716,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,346.40 : 1,279,786.08 = 519,424.40 : x
  2. Step 2: Convert to fraction form
    927,346.40/1,279,786.08 = 519,424.40/x
  3. Step 3: Cross multiply
    927,346.40x = 1,279,786.08 × 519,424.40
  4. Step 4: Simplify right side
    927,346.40x = 664,752,116,732.35
  5. Step 5: Solve for x
    x = 664,752,116,732.35/927,346.40
  6. Step 6: Final answer
    x = 716,832.58

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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.