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Finding the Fourth Proportional to 647,404.60, 971,337.30 and 624,364.60

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Solution

The fourth proportional to 647,404.60, 971,337.30 and 624,364.60 is: 936,769.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,404.60 : 971,337.30 = 624,364.60 : x
  2. Step 2: Convert to fraction form
    647,404.60/971,337.30 = 624,364.60/x
  3. Step 3: Cross multiply
    647,404.60x = 971,337.30 × 624,364.60
  4. Step 4: Simplify right side
    647,404.60x = 606,468,624,779.58
  5. Step 5: Solve for x
    x = 606,468,624,779.58/647,404.60
  6. Step 6: Final answer
    x = 936,769.10

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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.