Home / 786,985.70-1,086,008.19-464,800.10

Finding the Fourth Proportional to 786,985.70, 1,086,008.19 and 464,800.10

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Solution

The fourth proportional to 786,985.70, 1,086,008.19 and 464,800.10 is: 641,405.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,985.70 : 1,086,008.19 = 464,800.10 : x
  2. Step 2: Convert to fraction form
    786,985.70/1,086,008.19 = 464,800.10/x
  3. Step 3: Cross multiply
    786,985.70x = 1,086,008.19 × 464,800.10
  4. Step 4: Simplify right side
    786,985.70x = 504,776,715,312.82
  5. Step 5: Solve for x
    x = 504,776,715,312.82/786,985.70
  6. Step 6: Final answer
    x = 641,405.19

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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.