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Finding the Fourth Proportional to 352,391, 486,703.20 and 232,070.12

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Solution

The fourth proportional to 352,391, 486,703.20 and 232,070.12 is: 320,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,391 : 486,703.20 = 232,070.12 : x
  2. Step 2: Convert to fraction form
    352,391/486,703.20 = 232,070.12/x
  3. Step 3: Cross multiply
    352,391x = 486,703.20 × 232,070.12
  4. Step 4: Simplify right side
    352,391x = 112,949,270,028.38
  5. Step 5: Solve for x
    x = 112,949,270,028.38/352,391
  6. Step 6: Final answer
    x = 320,522.57

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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.