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Finding the Fourth Proportional to 439,581.84, 606,623.28 and 238,377.84

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Solution

The fourth proportional to 439,581.84, 606,623.28 and 238,377.84 is: 328,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,581.84 : 606,623.28 = 238,377.84 : x
  2. Step 2: Convert to fraction form
    439,581.84/606,623.28 = 238,377.84/x
  3. Step 3: Cross multiply
    439,581.84x = 606,623.28 × 238,377.84
  4. Step 4: Simplify right side
    439,581.84x = 144,605,547,180.12
  5. Step 5: Solve for x
    x = 144,605,547,180.12/439,581.84
  6. Step 6: Final answer
    x = 328,961.60

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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.