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Finding the Fourth Proportional to 407,849.70, 611,774.55 and 407,849.70

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Solution

The fourth proportional to 407,849.70, 611,774.55 and 407,849.70 is: 611,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,849.70 : 611,774.55 = 407,849.70 : x
  2. Step 2: Convert to fraction form
    407,849.70/611,774.55 = 407,849.70/x
  3. Step 3: Cross multiply
    407,849.70x = 611,774.55 × 407,849.70
  4. Step 4: Simplify right side
    407,849.70x = 249,512,066,685.14
  5. Step 5: Solve for x
    x = 249,512,066,685.14/407,849.70
  6. Step 6: Final answer
    x = 611,774.55

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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.