Home / 826,685,380.32-1,140,825,321.86-455,407,411.69

Finding the Fourth Proportional to 826,685,380.32, 1,140,825,321.86 and 455,407,411.69

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Solution

The fourth proportional to 826,685,380.32, 1,140,825,321.86 and 455,407,411.69 is: 628,461,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,380.32 : 1,140,825,321.86 = 455,407,411.69 : x
  2. Step 2: Convert to fraction form
    826,685,380.32/1,140,825,321.86 = 455,407,411.69/x
  3. Step 3: Cross multiply
    826,685,380.32x = 1,140,825,321.86 × 455,407,411.69
  4. Step 4: Simplify right side
    826,685,380.32x = 519,540,307,018,673,728
  5. Step 5: Solve for x
    x = 519,540,307,018,673,728/826,685,380.32
  6. Step 6: Final answer
    x = 628,461,951.05

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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.