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Finding the Fourth Proportional to 404,645.90, 565,454.50 and 404,645.90

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Solution

The fourth proportional to 404,645.90, 565,454.50 and 404,645.90 is: 565,454.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,645.90 : 565,454.50 = 404,645.90 : x
  2. Step 2: Convert to fraction form
    404,645.90/565,454.50 = 404,645.90/x
  3. Step 3: Cross multiply
    404,645.90x = 565,454.50 × 404,645.90
  4. Step 4: Simplify right side
    404,645.90x = 228,808,845,061.55
  5. Step 5: Solve for x
    x = 228,808,845,061.55/404,645.90
  6. Step 6: Final answer
    x = 565,454.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.