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Finding the Fourth Proportional to 554,712.61, 765,371.26 and 382,575.55

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Solution

The fourth proportional to 554,712.61, 765,371.26 and 382,575.55 is: 527,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,712.61 : 765,371.26 = 382,575.55 : x
  2. Step 2: Convert to fraction form
    554,712.61/765,371.26 = 382,575.55/x
  3. Step 3: Cross multiply
    554,712.61x = 765,371.26 × 382,575.55
  4. Step 4: Simplify right side
    554,712.61x = 292,812,330,748.69
  5. Step 5: Solve for x
    x = 292,812,330,748.69/554,712.61
  6. Step 6: Final answer
    x = 527,863.12

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Double scale
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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.