Home / 780,323.16-1,170,484.74-219,357.66

Finding the Fourth Proportional to 780,323.16, 1,170,484.74 and 219,357.66

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Solution

The fourth proportional to 780,323.16, 1,170,484.74 and 219,357.66 is: 329,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,323.16 : 1,170,484.74 = 219,357.66 : x
  2. Step 2: Convert to fraction form
    780,323.16/1,170,484.74 = 219,357.66/x
  3. Step 3: Cross multiply
    780,323.16x = 1,170,484.74 × 219,357.66
  4. Step 4: Simplify right side
    780,323.16x = 256,754,793,632.11
  5. Step 5: Solve for x
    x = 256,754,793,632.11/780,323.16
  6. Step 6: Final answer
    x = 329,036.49

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Double scale
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Similar ratio
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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.