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Finding the Fourth Proportional to 543,498.09, 811,587.20 and 443,855.94

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Solution

The fourth proportional to 543,498.09, 811,587.20 and 443,855.94 is: 662,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,498.09 : 811,587.20 = 443,855.94 : x
  2. Step 2: Convert to fraction form
    543,498.09/811,587.20 = 443,855.94/x
  3. Step 3: Cross multiply
    543,498.09x = 811,587.20 × 443,855.94
  4. Step 4: Simplify right side
    543,498.09x = 360,227,799,547.97
  5. Step 5: Solve for x
    x = 360,227,799,547.97/543,498.09
  6. Step 6: Final answer
    x = 662,794.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.