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Finding the Fourth Proportional to 464,905.80, 697,358.70 and 127,945.80

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Solution

The fourth proportional to 464,905.80, 697,358.70 and 127,945.80 is: 191,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,905.80 : 697,358.70 = 127,945.80 : x
  2. Step 2: Convert to fraction form
    464,905.80/697,358.70 = 127,945.80/x
  3. Step 3: Cross multiply
    464,905.80x = 697,358.70 × 127,945.80
  4. Step 4: Simplify right side
    464,905.80x = 89,224,116,758.46
  5. Step 5: Solve for x
    x = 89,224,116,758.46/464,905.80
  6. Step 6: Final answer
    x = 191,918.70

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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.