Home / 669,923.70-1,004,885.55-618,602.10

Finding the Fourth Proportional to 669,923.70, 1,004,885.55 and 618,602.10

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Solution

The fourth proportional to 669,923.70, 1,004,885.55 and 618,602.10 is: 927,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,923.70 : 1,004,885.55 = 618,602.10 : x
  2. Step 2: Convert to fraction form
    669,923.70/1,004,885.55 = 618,602.10/x
  3. Step 3: Cross multiply
    669,923.70x = 1,004,885.55 × 618,602.10
  4. Step 4: Simplify right side
    669,923.70x = 621,624,311,489.66
  5. Step 5: Solve for x
    x = 621,624,311,489.66/669,923.70
  6. Step 6: Final answer
    x = 927,903.15

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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.