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Finding the Fourth Proportional to 572,529.40, 800,491.40 and 572,529.40

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Solution

The fourth proportional to 572,529.40, 800,491.40 and 572,529.40 is: 800,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,529.40 : 800,491.40 = 572,529.40 : x
  2. Step 2: Convert to fraction form
    572,529.40/800,491.40 = 572,529.40/x
  3. Step 3: Cross multiply
    572,529.40x = 800,491.40 × 572,529.40
  4. Step 4: Simplify right side
    572,529.40x = 458,304,860,947.16
  5. Step 5: Solve for x
    x = 458,304,860,947.16/572,529.40
  6. Step 6: Final answer
    x = 800,491.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.