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Finding the Fourth Proportional to 977,132.80, 1,465,504.80 and 471,692.80

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Solution

The fourth proportional to 977,132.80, 1,465,504.80 and 471,692.80 is: 707,445.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,132.80 : 1,465,504.80 = 471,692.80 : x
  2. Step 2: Convert to fraction form
    977,132.80/1,465,504.80 = 471,692.80/x
  3. Step 3: Cross multiply
    977,132.80x = 1,465,504.80 × 471,692.80
  4. Step 4: Simplify right side
    977,132.80x = 691,268,062,525.44
  5. Step 5: Solve for x
    x = 691,268,062,525.44/977,132.80
  6. Step 6: Final answer
    x = 707,445.36

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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.