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Finding the Fourth Proportional to 567,322.14, 782,881.51 and 309,193.61

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Solution

The fourth proportional to 567,322.14, 782,881.51 and 309,193.61 is: 426,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,322.14 : 782,881.51 = 309,193.61 : x
  2. Step 2: Convert to fraction form
    567,322.14/782,881.51 = 309,193.61/x
  3. Step 3: Cross multiply
    567,322.14x = 782,881.51 × 309,193.61
  4. Step 4: Simplify right side
    567,322.14x = 242,061,954,818.78
  5. Step 5: Solve for x
    x = 242,061,954,818.78/567,322.14
  6. Step 6: Final answer
    x = 426,674.61

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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.