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Finding the Fourth Proportional to 555,875.92, 767,109.40 and 301,224.88

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Solution

The fourth proportional to 555,875.92, 767,109.40 and 301,224.88 is: 415,690.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,875.92 : 767,109.40 = 301,224.88 : x
  2. Step 2: Convert to fraction form
    555,875.92/767,109.40 = 301,224.88/x
  3. Step 3: Cross multiply
    555,875.92x = 767,109.40 × 301,224.88
  4. Step 4: Simplify right side
    555,875.92x = 231,072,436,961.87
  5. Step 5: Solve for x
    x = 231,072,436,961.87/555,875.92
  6. Step 6: Final answer
    x = 415,690.68

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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.