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Finding the Fourth Proportional to 919,908.70, 1,379,863.05 and 601,044.10

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Solution

The fourth proportional to 919,908.70, 1,379,863.05 and 601,044.10 is: 901,566.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,908.70 : 1,379,863.05 = 601,044.10 : x
  2. Step 2: Convert to fraction form
    919,908.70/1,379,863.05 = 601,044.10/x
  3. Step 3: Cross multiply
    919,908.70x = 1,379,863.05 × 601,044.10
  4. Step 4: Simplify right side
    919,908.70x = 829,358,545,010.51
  5. Step 5: Solve for x
    x = 829,358,545,010.51/919,908.70
  6. Step 6: Final answer
    x = 901,566.15

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Double scale
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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.