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Finding the Fourth Proportional to 713,048.70, 1,069,573.05 and 292,626.30

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Solution

The fourth proportional to 713,048.70, 1,069,573.05 and 292,626.30 is: 438,939.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,048.70 : 1,069,573.05 = 292,626.30 : x
  2. Step 2: Convert to fraction form
    713,048.70/1,069,573.05 = 292,626.30/x
  3. Step 3: Cross multiply
    713,048.70x = 1,069,573.05 × 292,626.30
  4. Step 4: Simplify right side
    713,048.70x = 312,985,204,201.22
  5. Step 5: Solve for x
    x = 312,985,204,201.22/713,048.70
  6. Step 6: Final answer
    x = 438,939.45

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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.