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Finding the Fourth Proportional to 1,974,461.76, 2,961,692.67 and 478,553.76

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Solution

The fourth proportional to 1,974,461.76, 2,961,692.67 and 478,553.76 is: 717,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,461.76 : 2,961,692.67 = 478,553.76 : x
  2. Step 2: Convert to fraction form
    1,974,461.76/2,961,692.67 = 478,553.76/x
  3. Step 3: Cross multiply
    1,974,461.76x = 2,961,692.67 × 478,553.76
  4. Step 4: Simplify right side
    1,974,461.76x = 1,417,329,163,192.94
  5. Step 5: Solve for x
    x = 1,417,329,163,192.94/1,974,461.76
  6. Step 6: Final answer
    x = 717,830.65

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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.