Home / 699,017,605.25-964,664,746.45-381,498,216.57

Finding the Fourth Proportional to 699,017,605.25, 964,664,746.45 and 381,498,216.57

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Solution

The fourth proportional to 699,017,605.25, 964,664,746.45 and 381,498,216.57 is: 526,478,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,017,605.25 : 964,664,746.45 = 381,498,216.57 : x
  2. Step 2: Convert to fraction form
    699,017,605.25/964,664,746.45 = 381,498,216.57/x
  3. Step 3: Cross multiply
    699,017,605.25x = 964,664,746.45 × 381,498,216.57
  4. Step 4: Simplify right side
    699,017,605.25x = 368,017,880,359,103,104
  5. Step 5: Solve for x
    x = 368,017,880,359,103,104/699,017,605.25
  6. Step 6: Final answer
    x = 526,478,700.39

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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.