Home / 638,256.20-957,384.30-598,890.20

Finding the Fourth Proportional to 638,256.20, 957,384.30 and 598,890.20

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Solution

The fourth proportional to 638,256.20, 957,384.30 and 598,890.20 is: 898,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,256.20 : 957,384.30 = 598,890.20 : x
  2. Step 2: Convert to fraction form
    638,256.20/957,384.30 = 598,890.20/x
  3. Step 3: Cross multiply
    638,256.20x = 957,384.30 × 598,890.20
  4. Step 4: Simplify right side
    638,256.20x = 573,368,074,903.86
  5. Step 5: Solve for x
    x = 573,368,074,903.86/638,256.20
  6. Step 6: Final answer
    x = 898,335.30

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Half scale
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Double scale
Find fourth proportional to 638,257.20, 957,385.80 and 598,891.20
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.