Home / 828,136.66-1,142,686.11-465,510.19

Finding the Fourth Proportional to 828,136.66, 1,142,686.11 and 465,510.19

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Solution

The fourth proportional to 828,136.66, 1,142,686.11 and 465,510.19 is: 642,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,136.66 : 1,142,686.11 = 465,510.19 : x
  2. Step 2: Convert to fraction form
    828,136.66/1,142,686.11 = 465,510.19/x
  3. Step 3: Cross multiply
    828,136.66x = 1,142,686.11 × 465,510.19
  4. Step 4: Simplify right side
    828,136.66x = 531,932,028,176.46
  5. Step 5: Solve for x
    x = 531,932,028,176.46/828,136.66
  6. Step 6: Final answer
    x = 642,323.97

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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.