Home / 637,402.16-879,626.25-347,022.17

Finding the Fourth Proportional to 637,402.16, 879,626.25 and 347,022.17

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Solution

The fourth proportional to 637,402.16, 879,626.25 and 347,022.17 is: 478,896.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,402.16 : 879,626.25 = 347,022.17 : x
  2. Step 2: Convert to fraction form
    637,402.16/879,626.25 = 347,022.17/x
  3. Step 3: Cross multiply
    637,402.16x = 879,626.25 × 347,022.17
  4. Step 4: Simplify right side
    637,402.16x = 305,249,810,063.96
  5. Step 5: Solve for x
    x = 305,249,810,063.96/637,402.16
  6. Step 6: Final answer
    x = 478,896.73

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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.