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Finding the Fourth Proportional to 774,356, 1,068,641.28 and 529,853.29

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Solution

The fourth proportional to 774,356, 1,068,641.28 and 529,853.29 is: 731,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,356 : 1,068,641.28 = 529,853.29 : x
  2. Step 2: Convert to fraction form
    774,356/1,068,641.28 = 529,853.29/x
  3. Step 3: Cross multiply
    774,356x = 1,068,641.28 × 529,853.29
  4. Step 4: Simplify right side
    774,356x = 566,223,098,037.81
  5. Step 5: Solve for x
    x = 566,223,098,037.81/774,356
  6. Step 6: Final answer
    x = 731,218.07

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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.