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Finding the Fourth Proportional to 402,409,549.20, 603,614,323.80 and 402,409,549.20

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Solution

The fourth proportional to 402,409,549.20, 603,614,323.80 and 402,409,549.20 is: 603,614,323.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,549.20 : 603,614,323.80 = 402,409,549.20 : x
  2. Step 2: Convert to fraction form
    402,409,549.20/603,614,323.80 = 402,409,549.20/x
  3. Step 3: Cross multiply
    402,409,549.20x = 603,614,323.80 × 402,409,549.20
  4. Step 4: Simplify right side
    402,409,549.20x = 242,900,167,931,020,800
  5. Step 5: Solve for x
    x = 242,900,167,931,020,800/402,409,549.20
  6. Step 6: Final answer
    x = 603,614,323.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.