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Finding the Fourth Proportional to 647,583.20, 971,374.80 and 606,111.20

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Solution

The fourth proportional to 647,583.20, 971,374.80 and 606,111.20 is: 909,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,583.20 : 971,374.80 = 606,111.20 : x
  2. Step 2: Convert to fraction form
    647,583.20/971,374.80 = 606,111.20/x
  3. Step 3: Cross multiply
    647,583.20x = 971,374.80 × 606,111.20
  4. Step 4: Simplify right side
    647,583.20x = 588,761,145,677.76
  5. Step 5: Solve for x
    x = 588,761,145,677.76/647,583.20
  6. Step 6: Final answer
    x = 909,166.80

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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.