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Finding the Fourth Proportional to 551,447.10, 825,421.05 and 551,447.10

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Solution

The fourth proportional to 551,447.10, 825,421.05 and 551,447.10 is: 825,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,447.10 : 825,421.05 = 551,447.10 : x
  2. Step 2: Convert to fraction form
    551,447.10/825,421.05 = 551,447.10/x
  3. Step 3: Cross multiply
    551,447.10x = 825,421.05 × 551,447.10
  4. Step 4: Simplify right side
    551,447.10x = 455,176,044,301.46
  5. Step 5: Solve for x
    x = 455,176,044,301.46/551,447.10
  6. Step 6: Final answer
    x = 825,421.05

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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.