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Finding the Fourth Proportional to 647,434.60, 971,382.30 and 624,394.60

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Solution

The fourth proportional to 647,434.60, 971,382.30 and 624,394.60 is: 936,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,434.60 : 971,382.30 = 624,394.60 : x
  2. Step 2: Convert to fraction form
    647,434.60/971,382.30 = 624,394.60/x
  3. Step 3: Cross multiply
    647,434.60x = 971,382.30 × 624,394.60
  4. Step 4: Simplify right side
    647,434.60x = 606,525,862,655.58
  5. Step 5: Solve for x
    x = 606,525,862,655.58/647,434.60
  6. Step 6: Final answer
    x = 936,814.10

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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.