Home / 638,683.56-958,025.28-358,222.68

Finding the Fourth Proportional to 638,683.56, 958,025.28 and 358,222.68

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Solution

The fourth proportional to 638,683.56, 958,025.28 and 358,222.68 is: 537,333.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,683.56 : 958,025.28 = 358,222.68 : x
  2. Step 2: Convert to fraction form
    638,683.56/958,025.28 = 358,222.68/x
  3. Step 3: Cross multiply
    638,683.56x = 958,025.28 × 358,222.68
  4. Step 4: Simplify right side
    638,683.56x = 343,186,383,309.35
  5. Step 5: Solve for x
    x = 343,186,383,309.35/638,683.56
  6. Step 6: Final answer
    x = 537,333.99

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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.