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Finding the Fourth Proportional to 434,540.90, 651,811.35 and 417,044.90

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Solution

The fourth proportional to 434,540.90, 651,811.35 and 417,044.90 is: 625,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,540.90 : 651,811.35 = 417,044.90 : x
  2. Step 2: Convert to fraction form
    434,540.90/651,811.35 = 417,044.90/x
  3. Step 3: Cross multiply
    434,540.90x = 651,811.35 × 417,044.90
  4. Step 4: Simplify right side
    434,540.90x = 271,834,599,279.62
  5. Step 5: Solve for x
    x = 271,834,599,279.62/434,540.90
  6. Step 6: Final answer
    x = 625,567.35

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Similar ratio
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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.