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Finding the Fourth Proportional to 555,674.94, 766,830.30 and 301,026.74

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Solution

The fourth proportional to 555,674.94, 766,830.30 and 301,026.74 is: 415,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,674.94 : 766,830.30 = 301,026.74 : x
  2. Step 2: Convert to fraction form
    555,674.94/766,830.30 = 301,026.74/x
  3. Step 3: Cross multiply
    555,674.94x = 766,830.30 × 301,026.74
  4. Step 4: Simplify right side
    555,674.94x = 230,836,425,342.22
  5. Step 5: Solve for x
    x = 230,836,425,342.22/555,674.94
  6. Step 6: Final answer
    x = 415,416.30

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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.