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Finding the Fourth Proportional to 615,893.80, 923,840.70 and 583,234.60

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Solution

The fourth proportional to 615,893.80, 923,840.70 and 583,234.60 is: 874,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,893.80 : 923,840.70 = 583,234.60 : x
  2. Step 2: Convert to fraction form
    615,893.80/923,840.70 = 583,234.60/x
  3. Step 3: Cross multiply
    615,893.80x = 923,840.70 × 583,234.60
  4. Step 4: Simplify right side
    615,893.80x = 538,815,861,128.22
  5. Step 5: Solve for x
    x = 538,815,861,128.22/615,893.80
  6. Step 6: Final answer
    x = 874,851.90

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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.