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Finding the Fourth Proportional to 664,632.30, 996,948.45 and 384,696.30

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Solution

The fourth proportional to 664,632.30, 996,948.45 and 384,696.30 is: 577,044.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,632.30 : 996,948.45 = 384,696.30 : x
  2. Step 2: Convert to fraction form
    664,632.30/996,948.45 = 384,696.30/x
  3. Step 3: Cross multiply
    664,632.30x = 996,948.45 × 384,696.30
  4. Step 4: Simplify right side
    664,632.30x = 383,522,380,005.74
  5. Step 5: Solve for x
    x = 383,522,380,005.74/664,632.30
  6. Step 6: Final answer
    x = 577,044.45

Related Problems

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Half scale
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Double scale
Find fourth proportional to 664,633.30, 996,949.95 and 384,697.30
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.