Home / 830,565.41-1,146,190.97-491,030.69

Finding the Fourth Proportional to 830,565.41, 1,146,190.97 and 491,030.69

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Solution

The fourth proportional to 830,565.41, 1,146,190.97 and 491,030.69 is: 677,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,565.41 : 1,146,190.97 = 491,030.69 : x
  2. Step 2: Convert to fraction form
    830,565.41/1,146,190.97 = 491,030.69/x
  3. Step 3: Cross multiply
    830,565.41x = 1,146,190.97 × 491,030.69
  4. Step 4: Simplify right side
    830,565.41x = 562,814,938,367.49
  5. Step 5: Solve for x
    x = 562,814,938,367.49/830,565.41
  6. Step 6: Final answer
    x = 677,628.68

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.