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Finding the Fourth Proportional to 482,877,487.80, 724,369,375.80 and 155,297,255.40

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Solution

The fourth proportional to 482,877,487.80, 724,369,375.80 and 155,297,255.40 is: 232,962,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,877,487.80 : 724,369,375.80 = 155,297,255.40 : x
  2. Step 2: Convert to fraction form
    482,877,487.80/724,369,375.80 = 155,297,255.40/x
  3. Step 3: Cross multiply
    482,877,487.80x = 724,369,375.80 × 155,297,255.40
  4. Step 4: Simplify right side
    482,877,487.80x = 112,492,575,957,551,184
  5. Step 5: Solve for x
    x = 112,492,575,957,551,184/482,877,487.80
  6. Step 6: Final answer
    x = 232,962,974.67

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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.