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Finding the Fourth Proportional to 507,748.74, 700,693.65 and 281,394.24

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Solution

The fourth proportional to 507,748.74, 700,693.65 and 281,394.24 is: 388,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,748.74 : 700,693.65 = 281,394.24 : x
  2. Step 2: Convert to fraction form
    507,748.74/700,693.65 = 281,394.24/x
  3. Step 3: Cross multiply
    507,748.74x = 700,693.65 × 281,394.24
  4. Step 4: Simplify right side
    507,748.74x = 197,171,157,114.58
  5. Step 5: Solve for x
    x = 197,171,157,114.58/507,748.74
  6. Step 6: Final answer
    x = 388,324.27

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Half scale
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Double scale
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Similar ratio
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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.