Home / 1,112,152.70-1,668,213.47-438,239.83

Finding the Fourth Proportional to 1,112,152.70, 1,668,213.47 and 438,239.83

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Solution

The fourth proportional to 1,112,152.70, 1,668,213.47 and 438,239.83 is: 657,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,152.70 : 1,668,213.47 = 438,239.83 : x
  2. Step 2: Convert to fraction form
    1,112,152.70/1,668,213.47 = 438,239.83/x
  3. Step 3: Cross multiply
    1,112,152.70x = 1,668,213.47 × 438,239.83
  4. Step 4: Simplify right side
    1,112,152.70x = 731,077,589,587.29
  5. Step 5: Solve for x
    x = 731,077,589,587.29/1,112,152.70
  6. Step 6: Final answer
    x = 657,353.61

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Double scale
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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.