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Finding the Fourth Proportional to 497,008.36, 745,406.70 and 141,928.12

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Solution

The fourth proportional to 497,008.36, 745,406.70 and 141,928.12 is: 212,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,008.36 : 745,406.70 = 141,928.12 : x
  2. Step 2: Convert to fraction form
    497,008.36/745,406.70 = 141,928.12/x
  3. Step 3: Cross multiply
    497,008.36x = 745,406.70 × 141,928.12
  4. Step 4: Simplify right side
    497,008.36x = 105,794,171,566.40
  5. Step 5: Solve for x
    x = 105,794,171,566.40/497,008.36
  6. Step 6: Final answer
    x = 212,861.96

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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.