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Finding the Fourth Proportional to 617,637.20, 925,764.60 and 262,590.80

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Solution

The fourth proportional to 617,637.20, 925,764.60 and 262,590.80 is: 393,592.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,637.20 : 925,764.60 = 262,590.80 : x
  2. Step 2: Convert to fraction form
    617,637.20/925,764.60 = 262,590.80/x
  3. Step 3: Cross multiply
    617,637.20x = 925,764.60 × 262,590.80
  4. Step 4: Simplify right side
    617,637.20x = 243,097,266,925.68
  5. Step 5: Solve for x
    x = 243,097,266,925.68/617,637.20
  6. Step 6: Final answer
    x = 393,592.33

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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.