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Finding the Fourth Proportional to 522,094.40, 783,141.60 and 389,234.16

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Solution

The fourth proportional to 522,094.40, 783,141.60 and 389,234.16 is: 583,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,094.40 : 783,141.60 = 389,234.16 : x
  2. Step 2: Convert to fraction form
    522,094.40/783,141.60 = 389,234.16/x
  3. Step 3: Cross multiply
    522,094.40x = 783,141.60 × 389,234.16
  4. Step 4: Simplify right side
    522,094.40x = 304,825,462,837.06
  5. Step 5: Solve for x
    x = 304,825,462,837.06/522,094.40
  6. Step 6: Final answer
    x = 583,851.24

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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.