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Finding the Fourth Proportional to 649,194.90, 973,792.35 and 491,730.90

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Solution

The fourth proportional to 649,194.90, 973,792.35 and 491,730.90 is: 737,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,194.90 : 973,792.35 = 491,730.90 : x
  2. Step 2: Convert to fraction form
    649,194.90/973,792.35 = 491,730.90/x
  3. Step 3: Cross multiply
    649,194.90x = 973,792.35 × 491,730.90
  4. Step 4: Simplify right side
    649,194.90x = 478,843,788,678.62
  5. Step 5: Solve for x
    x = 478,843,788,678.62/649,194.90
  6. Step 6: Final answer
    x = 737,596.35

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Half scale
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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.