Home / 646,743.40-970,115.10-197,463.40

Finding the Fourth Proportional to 646,743.40, 970,115.10 and 197,463.40

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Solution

The fourth proportional to 646,743.40, 970,115.10 and 197,463.40 is: 296,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,743.40 : 970,115.10 = 197,463.40 : x
  2. Step 2: Convert to fraction form
    646,743.40/970,115.10 = 197,463.40/x
  3. Step 3: Cross multiply
    646,743.40x = 970,115.10 × 197,463.40
  4. Step 4: Simplify right side
    646,743.40x = 191,562,226,037.34
  5. Step 5: Solve for x
    x = 191,562,226,037.34/646,743.40
  6. Step 6: Final answer
    x = 296,195.10

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Half scale
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Double scale
Find fourth proportional to 646,744.40, 970,116.60 and 197,464.40
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.