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Finding the Fourth Proportional to 522,092.90, 783,139.35 and 417,116.90

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Solution

The fourth proportional to 522,092.90, 783,139.35 and 417,116.90 is: 625,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,092.90 : 783,139.35 = 417,116.90 : x
  2. Step 2: Convert to fraction form
    522,092.90/783,139.35 = 417,116.90/x
  3. Step 3: Cross multiply
    522,092.90x = 783,139.35 × 417,116.90
  4. Step 4: Simplify right side
    522,092.90x = 326,660,657,940.02
  5. Step 5: Solve for x
    x = 326,660,657,940.02/522,092.90
  6. Step 6: Final answer
    x = 625,675.35

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Double scale
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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.