Home / 866,786.61-1,196,136.57-479,602.74

Finding the Fourth Proportional to 866,786.61, 1,196,136.57 and 479,602.74

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Solution

The fourth proportional to 866,786.61, 1,196,136.57 and 479,602.74 is: 661,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,786.61 : 1,196,136.57 = 479,602.74 : x
  2. Step 2: Convert to fraction form
    866,786.61/1,196,136.57 = 479,602.74/x
  3. Step 3: Cross multiply
    866,786.61x = 1,196,136.57 × 479,602.74
  4. Step 4: Simplify right side
    866,786.61x = 573,670,376,386.20
  5. Step 5: Solve for x
    x = 573,670,376,386.20/866,786.61
  6. Step 6: Final answer
    x = 661,835.76

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Double scale
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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.