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Finding the Fourth Proportional to 439,085.16, 605,938.12 and 237,881.16

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Solution

The fourth proportional to 439,085.16, 605,938.12 and 237,881.16 is: 328,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,085.16 : 605,938.12 = 237,881.16 : x
  2. Step 2: Convert to fraction form
    439,085.16/605,938.12 = 237,881.16/x
  3. Step 3: Cross multiply
    439,085.16x = 605,938.12 × 237,881.16
  4. Step 4: Simplify right side
    439,085.16x = 144,141,262,873.82
  5. Step 5: Solve for x
    x = 144,141,262,873.82/439,085.16
  6. Step 6: Final answer
    x = 328,276.33

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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.