Home / 764,858.07-1,151,840.30-666,209.79

Finding the Fourth Proportional to 764,858.07, 1,151,840.30 and 666,209.79

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Solution

The fourth proportional to 764,858.07, 1,151,840.30 and 666,209.79 is: 1,003,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,858.07 : 1,151,840.30 = 666,209.79 : x
  2. Step 2: Convert to fraction form
    764,858.07/1,151,840.30 = 666,209.79/x
  3. Step 3: Cross multiply
    764,858.07x = 1,151,840.30 × 666,209.79
  4. Step 4: Simplify right side
    764,858.07x = 767,367,281,045.49
  5. Step 5: Solve for x
    x = 767,367,281,045.49/764,858.07
  6. Step 6: Final answer
    x = 1,003,280.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.