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Finding the Fourth Proportional to 617,025.60, 925,538.40 and 561,913.20

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Solution

The fourth proportional to 617,025.60, 925,538.40 and 561,913.20 is: 842,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,025.60 : 925,538.40 = 561,913.20 : x
  2. Step 2: Convert to fraction form
    617,025.60/925,538.40 = 561,913.20/x
  3. Step 3: Cross multiply
    617,025.60x = 925,538.40 × 561,913.20
  4. Step 4: Simplify right side
    617,025.60x = 520,072,244,066.88
  5. Step 5: Solve for x
    x = 520,072,244,066.88/617,025.60
  6. Step 6: Final answer
    x = 842,869.80

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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.