Home / 638,205.24-880,683.66-351,709.32

Finding the Fourth Proportional to 638,205.24, 880,683.66 and 351,709.32

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Solution

The fourth proportional to 638,205.24, 880,683.66 and 351,709.32 is: 485,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,205.24 : 880,683.66 = 351,709.32 : x
  2. Step 2: Convert to fraction form
    638,205.24/880,683.66 = 351,709.32/x
  3. Step 3: Cross multiply
    638,205.24x = 880,683.66 × 351,709.32
  4. Step 4: Simplify right side
    638,205.24x = 309,744,651,193.71
  5. Step 5: Solve for x
    x = 309,744,651,193.71/638,205.24
  6. Step 6: Final answer
    x = 485,337.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.