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Finding the Fourth Proportional to 526,910.81, 790,368.28 and 127,550.93

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Solution

The fourth proportional to 526,910.81, 790,368.28 and 127,550.93 is: 191,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,910.81 : 790,368.28 = 127,550.93 : x
  2. Step 2: Convert to fraction form
    526,910.81/790,368.28 = 127,550.93/x
  3. Step 3: Cross multiply
    526,910.81x = 790,368.28 × 127,550.93
  4. Step 4: Simplify right side
    526,910.81x = 100,812,210,813.54
  5. Step 5: Solve for x
    x = 100,812,210,813.54/526,910.81
  6. Step 6: Final answer
    x = 191,326.90

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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.