Home / 838,974.80-1,157,783.46-457,000.67

Finding the Fourth Proportional to 838,974.80, 1,157,783.46 and 457,000.67

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Solution

The fourth proportional to 838,974.80, 1,157,783.46 and 457,000.67 is: 630,659.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,974.80 : 1,157,783.46 = 457,000.67 : x
  2. Step 2: Convert to fraction form
    838,974.80/1,157,783.46 = 457,000.67/x
  3. Step 3: Cross multiply
    838,974.80x = 1,157,783.46 × 457,000.67
  4. Step 4: Simplify right side
    838,974.80x = 529,107,811,146.00
  5. Step 5: Solve for x
    x = 529,107,811,146.00/838,974.80
  6. Step 6: Final answer
    x = 630,659.96

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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.