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Finding the Fourth Proportional to 553,692.35, 830,607.77 and 216,689.46

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Solution

The fourth proportional to 553,692.35, 830,607.77 and 216,689.46 is: 325,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,692.35 : 830,607.77 = 216,689.46 : x
  2. Step 2: Convert to fraction form
    553,692.35/830,607.77 = 216,689.46/x
  3. Step 3: Cross multiply
    553,692.35x = 830,607.77 × 216,689.46
  4. Step 4: Simplify right side
    553,692.35x = 179,983,949,694.83
  5. Step 5: Solve for x
    x = 179,983,949,694.83/553,692.35
  6. Step 6: Final answer
    x = 325,061.29

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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.