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Finding the Fourth Proportional to 824,519.80, 1,234,811.40 and 824,519.80

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Solution

The fourth proportional to 824,519.80, 1,234,811.40 and 824,519.80 is: 1,234,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,519.80 : 1,234,811.40 = 824,519.80 : x
  2. Step 2: Convert to fraction form
    824,519.80/1,234,811.40 = 824,519.80/x
  3. Step 3: Cross multiply
    824,519.80x = 1,234,811.40 × 824,519.80
  4. Step 4: Simplify right side
    824,519.80x = 1,018,126,448,565.72
  5. Step 5: Solve for x
    x = 1,018,126,448,565.72/824,519.80
  6. Step 6: Final answer
    x = 1,234,811.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.