Home / 828,386.96-1,143,180.82-465,807.65

Finding the Fourth Proportional to 828,386.96, 1,143,180.82 and 465,807.65

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Solution

The fourth proportional to 828,386.96, 1,143,180.82 and 465,807.65 is: 642,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,386.96 : 1,143,180.82 = 465,807.65 : x
  2. Step 2: Convert to fraction form
    828,386.96/1,143,180.82 = 465,807.65/x
  3. Step 3: Cross multiply
    828,386.96x = 1,143,180.82 × 465,807.65
  4. Step 4: Simplify right side
    828,386.96x = 532,502,369,668.34
  5. Step 5: Solve for x
    x = 532,502,369,668.34/828,386.96
  6. Step 6: Final answer
    x = 642,818.39

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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.