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Finding the Fourth Proportional to 522,064.60, 783,096.90 and 242,128.60

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Solution

The fourth proportional to 522,064.60, 783,096.90 and 242,128.60 is: 363,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,064.60 : 783,096.90 = 242,128.60 : x
  2. Step 2: Convert to fraction form
    522,064.60/783,096.90 = 242,128.60/x
  3. Step 3: Cross multiply
    522,064.60x = 783,096.90 × 242,128.60
  4. Step 4: Simplify right side
    522,064.60x = 189,610,156,061.34
  5. Step 5: Solve for x
    x = 189,610,156,061.34/522,064.60
  6. Step 6: Final answer
    x = 363,192.90

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.