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Finding the Fourth Proportional to 436,411.90, 653,451.45 and 436,411.90

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Solution

The fourth proportional to 436,411.90, 653,451.45 and 436,411.90 is: 653,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,411.90 : 653,451.45 = 436,411.90 : x
  2. Step 2: Convert to fraction form
    436,411.90/653,451.45 = 436,411.90/x
  3. Step 3: Cross multiply
    436,411.90x = 653,451.45 × 436,411.90
  4. Step 4: Simplify right side
    436,411.90x = 285,173,988,852.26
  5. Step 5: Solve for x
    x = 285,173,988,852.26/436,411.90
  6. Step 6: Final answer
    x = 653,451.45

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1.5x scale

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.