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Finding the Fourth Proportional to 546,521.40, 819,782.10 and 509,196.60

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Solution

The fourth proportional to 546,521.40, 819,782.10 and 509,196.60 is: 763,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,521.40 : 819,782.10 = 509,196.60 : x
  2. Step 2: Convert to fraction form
    546,521.40/819,782.10 = 509,196.60/x
  3. Step 3: Cross multiply
    546,521.40x = 819,782.10 × 509,196.60
  4. Step 4: Simplify right side
    546,521.40x = 417,430,258,060.86
  5. Step 5: Solve for x
    x = 417,430,258,060.86/546,521.40
  6. Step 6: Final answer
    x = 763,794.90

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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.