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Finding the Fourth Proportional to 4,893,319.05, 7,339,978.58 and 4,893,319.05

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Solution

The fourth proportional to 4,893,319.05, 7,339,978.58 and 4,893,319.05 is: 7,339,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893,319.05 : 7,339,978.58 = 4,893,319.05 : x
  2. Step 2: Convert to fraction form
    4,893,319.05/7,339,978.58 = 4,893,319.05/x
  3. Step 3: Cross multiply
    4,893,319.05x = 7,339,978.58 × 4,893,319.05
  4. Step 4: Simplify right side
    4,893,319.05x = 35,916,856,987,639.35
  5. Step 5: Solve for x
    x = 35,916,856,987,639.35/4,893,319.05
  6. Step 6: Final answer
    x = 7,339,978.58

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Double scale
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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.