Home / 526,123.40-788,666.70-259,665.80

Finding the Fourth Proportional to 526,123.40, 788,666.70 and 259,665.80

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Solution

The fourth proportional to 526,123.40, 788,666.70 and 259,665.80 is: 389,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,123.40 : 788,666.70 = 259,665.80 : x
  2. Step 2: Convert to fraction form
    526,123.40/788,666.70 = 259,665.80/x
  3. Step 3: Cross multiply
    526,123.40x = 788,666.70 × 259,665.80
  4. Step 4: Simplify right side
    526,123.40x = 204,789,769,588.86
  5. Step 5: Solve for x
    x = 204,789,769,588.86/526,123.40
  6. Step 6: Final answer
    x = 389,242.85

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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.