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Finding the Fourth Proportional to 407,832.40, 611,748.60 and 407,832.40

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Solution

The fourth proportional to 407,832.40, 611,748.60 and 407,832.40 is: 611,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,832.40 : 611,748.60 = 407,832.40 : x
  2. Step 2: Convert to fraction form
    407,832.40/611,748.60 = 407,832.40/x
  3. Step 3: Cross multiply
    407,832.40x = 611,748.60 × 407,832.40
  4. Step 4: Simplify right side
    407,832.40x = 249,490,899,734.64
  5. Step 5: Solve for x
    x = 249,490,899,734.64/407,832.40
  6. Step 6: Final answer
    x = 611,748.60

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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.