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Finding the Fourth Proportional to 710,265.84, 980,166.81 and 383,578.82

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Solution

The fourth proportional to 710,265.84, 980,166.81 and 383,578.82 is: 529,338.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,265.84 : 980,166.81 = 383,578.82 : x
  2. Step 2: Convert to fraction form
    710,265.84/980,166.81 = 383,578.82/x
  3. Step 3: Cross multiply
    710,265.84x = 980,166.81 × 383,578.82
  4. Step 4: Simplify right side
    710,265.84x = 375,971,228,382.96
  5. Step 5: Solve for x
    x = 375,971,228,382.96/710,265.84
  6. Step 6: Final answer
    x = 529,338.75

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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.