Home / 696,605,815.76-961,291,919.76-383,310,717.44

Finding the Fourth Proportional to 696,605,815.76, 961,291,919.76 and 383,310,717.44

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Solution

The fourth proportional to 696,605,815.76, 961,291,919.76 and 383,310,717.44 is: 528,955,525.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,605,815.76 : 961,291,919.76 = 383,310,717.44 : x
  2. Step 2: Convert to fraction form
    696,605,815.76/961,291,919.76 = 383,310,717.44/x
  3. Step 3: Cross multiply
    696,605,815.76x = 961,291,919.76 × 383,310,717.44
  4. Step 4: Simplify right side
    696,605,815.76x = 368,473,495,432,480,512
  5. Step 5: Solve for x
    x = 368,473,495,432,480,512/696,605,815.76
  6. Step 6: Final answer
    x = 528,955,525.63

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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.