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Finding the Fourth Proportional to 1,974,656.50, 2,961,994.47 and 478,748.50

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Solution

The fourth proportional to 1,974,656.50, 2,961,994.47 and 478,748.50 is: 718,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,656.50 : 2,961,994.47 = 478,748.50 : x
  2. Step 2: Convert to fraction form
    1,974,656.50/2,961,994.47 = 478,748.50/x
  3. Step 3: Cross multiply
    1,974,656.50x = 2,961,994.47 × 478,748.50
  4. Step 4: Simplify right side
    1,974,656.50x = 1,418,050,409,520.80
  5. Step 5: Solve for x
    x = 1,418,050,409,520.80/1,974,656.50
  6. Step 6: Final answer
    x = 718,125.11

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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.