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Finding the Fourth Proportional to 772,592.80, 1,157,506.80 and 662,000.80

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Solution

The fourth proportional to 772,592.80, 1,157,506.80 and 662,000.80 is: 991,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,592.80 : 1,157,506.80 = 662,000.80 : x
  2. Step 2: Convert to fraction form
    772,592.80/1,157,506.80 = 662,000.80/x
  3. Step 3: Cross multiply
    772,592.80x = 1,157,506.80 × 662,000.80
  4. Step 4: Simplify right side
    772,592.80x = 766,270,427,605.44
  5. Step 5: Solve for x
    x = 766,270,427,605.44/772,592.80
  6. Step 6: Final answer
    x = 991,816.68

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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.