Home / 459,722.10-689,583.15-127,298.10

Finding the Fourth Proportional to 459,722.10, 689,583.15 and 127,298.10

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Solution

The fourth proportional to 459,722.10, 689,583.15 and 127,298.10 is: 190,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,722.10 : 689,583.15 = 127,298.10 : x
  2. Step 2: Convert to fraction form
    459,722.10/689,583.15 = 127,298.10/x
  3. Step 3: Cross multiply
    459,722.10x = 689,583.15 × 127,298.10
  4. Step 4: Simplify right side
    459,722.10x = 87,782,624,787.02
  5. Step 5: Solve for x
    x = 87,782,624,787.02/459,722.10
  6. Step 6: Final answer
    x = 190,947.15

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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.