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Finding the Fourth Proportional to 615,573.64, 923,685.48 and 436,814.08

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Solution

The fourth proportional to 615,573.64, 923,685.48 and 436,814.08 is: 655,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,573.64 : 923,685.48 = 436,814.08 : x
  2. Step 2: Convert to fraction form
    615,573.64/923,685.48 = 436,814.08/x
  3. Step 3: Cross multiply
    615,573.64x = 923,685.48 × 436,814.08
  4. Step 4: Simplify right side
    615,573.64x = 403,478,823,155.56
  5. Step 5: Solve for x
    x = 403,478,823,155.56/615,573.64
  6. Step 6: Final answer
    x = 655,451.76

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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.