Home / 870,434.67-1,200,891.90-568,803.63

Finding the Fourth Proportional to 870,434.67, 1,200,891.90 and 568,803.63

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Solution

The fourth proportional to 870,434.67, 1,200,891.90 and 568,803.63 is: 784,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,434.67 : 1,200,891.90 = 568,803.63 : x
  2. Step 2: Convert to fraction form
    870,434.67/1,200,891.90 = 568,803.63/x
  3. Step 3: Cross multiply
    870,434.67x = 1,200,891.90 × 568,803.63
  4. Step 4: Simplify right side
    870,434.67x = 683,071,671,957.60
  5. Step 5: Solve for x
    x = 683,071,671,957.60/870,434.67
  6. Step 6: Final answer
    x = 784,747.78

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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.