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Finding the Fourth Proportional to 705,339.40, 1,058,009.10 and 373,563.40

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Solution

The fourth proportional to 705,339.40, 1,058,009.10 and 373,563.40 is: 560,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,339.40 : 1,058,009.10 = 373,563.40 : x
  2. Step 2: Convert to fraction form
    705,339.40/1,058,009.10 = 373,563.40/x
  3. Step 3: Cross multiply
    705,339.40x = 1,058,009.10 × 373,563.40
  4. Step 4: Simplify right side
    705,339.40x = 395,233,476,626.94
  5. Step 5: Solve for x
    x = 395,233,476,626.94/705,339.40
  6. Step 6: Final answer
    x = 560,345.10

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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.