Home / 631,987.45-947,788.38-332,305.45

Finding the Fourth Proportional to 631,987.45, 947,788.38 and 332,305.45

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Solution

The fourth proportional to 631,987.45, 947,788.38 and 332,305.45 is: 498,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,987.45 : 947,788.38 = 332,305.45 : x
  2. Step 2: Convert to fraction form
    631,987.45/947,788.38 = 332,305.45/x
  3. Step 3: Cross multiply
    631,987.45x = 947,788.38 × 332,305.45
  4. Step 4: Simplify right side
    631,987.45x = 314,955,241,751.20
  5. Step 5: Solve for x
    x = 314,955,241,751.20/631,987.45
  6. Step 6: Final answer
    x = 498,356.80

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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.