Home / 970,882,533.58-1,340,182,249.59-636,376,612.78

Finding the Fourth Proportional to 970,882,533.58, 1,340,182,249.59 and 636,376,612.78

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Solution

The fourth proportional to 970,882,533.58, 1,340,182,249.59 and 636,376,612.78 is: 878,438,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,882,533.58 : 1,340,182,249.59 = 636,376,612.78 : x
  2. Step 2: Convert to fraction form
    970,882,533.58/1,340,182,249.59 = 636,376,612.78/x
  3. Step 3: Cross multiply
    970,882,533.58x = 1,340,182,249.59 × 636,376,612.78
  4. Step 4: Simplify right side
    970,882,533.58x = 852,860,640,501,964,672
  5. Step 5: Solve for x
    x = 852,860,640,501,964,672/970,882,533.58
  6. Step 6: Final answer
    x = 878,438,545.35

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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.