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Finding the Fourth Proportional to 1,563,166, 2,157,169.08 and 847,774

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Solution

The fourth proportional to 1,563,166, 2,157,169.08 and 847,774 is: 1,169,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563,166 : 2,157,169.08 = 847,774 : x
  2. Step 2: Convert to fraction form
    1,563,166/2,157,169.08 = 847,774/x
  3. Step 3: Cross multiply
    1,563,166x = 2,157,169.08 × 847,774
  4. Step 4: Simplify right side
    1,563,166x = 1,828,791,859,627.92
  5. Step 5: Solve for x
    x = 1,828,791,859,627.92/1,563,166
  6. Step 6: Final answer
    x = 1,169,928.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.