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Finding the Fourth Proportional to 629,729.40, 883,487.40 and 629,729.40

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Solution

The fourth proportional to 629,729.40, 883,487.40 and 629,729.40 is: 883,487.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,729.40 : 883,487.40 = 629,729.40 : x
  2. Step 2: Convert to fraction form
    629,729.40/883,487.40 = 629,729.40/x
  3. Step 3: Cross multiply
    629,729.40x = 883,487.40 × 629,729.40
  4. Step 4: Simplify right side
    629,729.40x = 556,357,990,309.56
  5. Step 5: Solve for x
    x = 556,357,990,309.56/629,729.40
  6. Step 6: Final answer
    x = 883,487.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.