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Finding the Fourth Proportional to 821,777.12, 1,134,165 and 472,910.32

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Solution

The fourth proportional to 821,777.12, 1,134,165 and 472,910.32 is: 652,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,777.12 : 1,134,165 = 472,910.32 : x
  2. Step 2: Convert to fraction form
    821,777.12/1,134,165 = 472,910.32/x
  3. Step 3: Cross multiply
    821,777.12x = 1,134,165 × 472,910.32
  4. Step 4: Simplify right side
    821,777.12x = 536,358,333,082.80
  5. Step 5: Solve for x
    x = 536,358,333,082.80/821,777.12
  6. Step 6: Final answer
    x = 652,681.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.