Home / 668,921.19-1,003,535.00-289,905.50

Finding the Fourth Proportional to 668,921.19, 1,003,535.00 and 289,905.50

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Solution

The fourth proportional to 668,921.19, 1,003,535.00 and 289,905.50 is: 434,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,921.19 : 1,003,535.00 = 289,905.50 : x
  2. Step 2: Convert to fraction form
    668,921.19/1,003,535.00 = 289,905.50/x
  3. Step 3: Cross multiply
    668,921.19x = 1,003,535.00 × 289,905.50
  4. Step 4: Simplify right side
    668,921.19x = 290,930,309,475.30
  5. Step 5: Solve for x
    x = 290,930,309,475.30/668,921.19
  6. Step 6: Final answer
    x = 434,924.64

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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.