Home / 665,330.40-997,848.72-191,912.40

Finding the Fourth Proportional to 665,330.40, 997,848.72 and 191,912.40

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Solution

The fourth proportional to 665,330.40, 997,848.72 and 191,912.40 is: 287,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,330.40 : 997,848.72 = 191,912.40 : x
  2. Step 2: Convert to fraction form
    665,330.40/997,848.72 = 191,912.40/x
  3. Step 3: Cross multiply
    665,330.40x = 997,848.72 × 191,912.40
  4. Step 4: Simplify right side
    665,330.40x = 191,499,542,692.13
  5. Step 5: Solve for x
    x = 191,499,542,692.13/665,330.40
  6. Step 6: Final answer
    x = 287,826.23

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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.