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Finding the Fourth Proportional to 318,520.58, 477,783.29 and 116,261.66

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Solution

The fourth proportional to 318,520.58, 477,783.29 and 116,261.66 is: 174,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,520.58 : 477,783.29 = 116,261.66 : x
  2. Step 2: Convert to fraction form
    318,520.58/477,783.29 = 116,261.66/x
  3. Step 3: Cross multiply
    318,520.58x = 477,783.29 × 116,261.66
  4. Step 4: Simplify right side
    318,520.58x = 55,547,879,900.77
  5. Step 5: Solve for x
    x = 55,547,879,900.77/318,520.58
  6. Step 6: Final answer
    x = 174,393.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.