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Finding the Fourth Proportional to 668,715.39, 922,827.14 and 382,241.63

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Solution

The fourth proportional to 668,715.39, 922,827.14 and 382,241.63 is: 527,493.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,715.39 : 922,827.14 = 382,241.63 : x
  2. Step 2: Convert to fraction form
    668,715.39/922,827.14 = 382,241.63/x
  3. Step 3: Cross multiply
    668,715.39x = 922,827.14 × 382,241.63
  4. Step 4: Simplify right side
    668,715.39x = 352,742,943,676.49
  5. Step 5: Solve for x
    x = 352,742,943,676.49/668,715.39
  6. Step 6: Final answer
    x = 527,493.38

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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.