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Finding the Fourth Proportional to 647,527.80, 971,291.70 and 629,095.80

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Solution

The fourth proportional to 647,527.80, 971,291.70 and 629,095.80 is: 943,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,527.80 : 971,291.70 = 629,095.80 : x
  2. Step 2: Convert to fraction form
    647,527.80/971,291.70 = 629,095.80/x
  3. Step 3: Cross multiply
    647,527.80x = 971,291.70 × 629,095.80
  4. Step 4: Simplify right side
    647,527.80x = 611,035,529,044.86
  5. Step 5: Solve for x
    x = 611,035,529,044.86/647,527.80
  6. Step 6: Final answer
    x = 943,643.70

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1.5x scale

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.