Home / 352,187.09-528,363.56-280,411.46

Finding the Fourth Proportional to 352,187.09, 528,363.56 and 280,411.46

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Solution

The fourth proportional to 352,187.09, 528,363.56 and 280,411.46 is: 420,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,187.09 : 528,363.56 = 280,411.46 : x
  2. Step 2: Convert to fraction form
    352,187.09/528,363.56 = 280,411.46/x
  3. Step 3: Cross multiply
    352,187.09x = 528,363.56 × 280,411.46
  4. Step 4: Simplify right side
    352,187.09x = 148,159,193,226.52
  5. Step 5: Solve for x
    x = 148,159,193,226.52/352,187.09
  6. Step 6: Final answer
    x = 420,683.21

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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.