Home / 1,216,511.72-1,678,776-700,366.76

Finding the Fourth Proportional to 1,216,511.72, 1,678,776 and 700,366.76

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Solution

The fourth proportional to 1,216,511.72, 1,678,776 and 700,366.76 is: 966,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,511.72 : 1,678,776 = 700,366.76 : x
  2. Step 2: Convert to fraction form
    1,216,511.72/1,678,776 = 700,366.76/x
  3. Step 3: Cross multiply
    1,216,511.72x = 1,678,776 × 700,366.76
  4. Step 4: Simplify right side
    1,216,511.72x = 1,175,758,907,885.76
  5. Step 5: Solve for x
    x = 1,175,758,907,885.76/1,216,511.72
  6. Step 6: Final answer
    x = 966,500.27

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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.