Home / 1,256,253,828.50-1,733,643,112.77-691,791,200.75

Finding the Fourth Proportional to 1,256,253,828.50, 1,733,643,112.77 and 691,791,200.75

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Solution

The fourth proportional to 1,256,253,828.50, 1,733,643,112.77 and 691,791,200.75 is: 954,678,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,253,828.50 : 1,733,643,112.77 = 691,791,200.75 : x
  2. Step 2: Convert to fraction form
    1,256,253,828.50/1,733,643,112.77 = 691,791,200.75/x
  3. Step 3: Cross multiply
    1,256,253,828.50x = 1,733,643,112.77 × 691,791,200.75
  4. Step 4: Simplify right side
    1,256,253,828.50x = 1,199,319,050,646,457,856
  5. Step 5: Solve for x
    x = 1,199,319,050,646,457,856/1,256,253,828.50
  6. Step 6: Final answer
    x = 954,678,921.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.