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Finding the Fourth Proportional to 335,847.40, 503,187.90 and 283,359.40

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Solution

The fourth proportional to 335,847.40, 503,187.90 and 283,359.40 is: 424,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,847.40 : 503,187.90 = 283,359.40 : x
  2. Step 2: Convert to fraction form
    335,847.40/503,187.90 = 283,359.40/x
  3. Step 3: Cross multiply
    335,847.40x = 503,187.90 × 283,359.40
  4. Step 4: Simplify right side
    335,847.40x = 142,583,021,431.26
  5. Step 5: Solve for x
    x = 142,583,021,431.26/335,847.40
  6. Step 6: Final answer
    x = 424,547.05

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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.