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Finding the Fourth Proportional to 886,909.80, 1,328,615.10 and 530,866.20

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Solution

The fourth proportional to 886,909.80, 1,328,615.10 and 530,866.20 is: 795,252.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,909.80 : 1,328,615.10 = 530,866.20 : x
  2. Step 2: Convert to fraction form
    886,909.80/1,328,615.10 = 530,866.20/x
  3. Step 3: Cross multiply
    886,909.80x = 1,328,615.10 × 530,866.20
  4. Step 4: Simplify right side
    886,909.80x = 705,316,849,399.62
  5. Step 5: Solve for x
    x = 705,316,849,399.62/886,909.80
  6. Step 6: Final answer
    x = 795,252.06

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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.