Home / 764,551.56-1,146,965.58-315,022.35

Finding the Fourth Proportional to 764,551.56, 1,146,965.58 and 315,022.35

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Solution

The fourth proportional to 764,551.56, 1,146,965.58 and 315,022.35 is: 472,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,551.56 : 1,146,965.58 = 315,022.35 : x
  2. Step 2: Convert to fraction form
    764,551.56/1,146,965.58 = 315,022.35/x
  3. Step 3: Cross multiply
    764,551.56x = 1,146,965.58 × 315,022.35
  4. Step 4: Simplify right side
    764,551.56x = 361,319,792,380.71
  5. Step 5: Solve for x
    x = 361,319,792,380.71/764,551.56
  6. Step 6: Final answer
    x = 472,590.48

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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.