Home / 646,974.78-970,636.86-197,683.34

Finding the Fourth Proportional to 646,974.78, 970,636.86 and 197,683.34

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Solution

The fourth proportional to 646,974.78, 970,636.86 and 197,683.34 is: 296,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,974.78 : 970,636.86 = 197,683.34 : x
  2. Step 2: Convert to fraction form
    646,974.78/970,636.86 = 197,683.34/x
  3. Step 3: Cross multiply
    646,974.78x = 970,636.86 × 197,683.34
  4. Step 4: Simplify right side
    646,974.78x = 191,878,736,411.91
  5. Step 5: Solve for x
    x = 191,878,736,411.91/646,974.78
  6. Step 6: Final answer
    x = 296,578.39

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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.