Home / 715,981.73-988,090.30-444,137.20

Finding the Fourth Proportional to 715,981.73, 988,090.30 and 444,137.20

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Solution

The fourth proportional to 715,981.73, 988,090.30 and 444,137.20 is: 612,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,981.73 : 988,090.30 = 444,137.20 : x
  2. Step 2: Convert to fraction form
    715,981.73/988,090.30 = 444,137.20/x
  3. Step 3: Cross multiply
    715,981.73x = 988,090.30 × 444,137.20
  4. Step 4: Simplify right side
    715,981.73x = 438,847,657,554.84
  5. Step 5: Solve for x
    x = 438,847,657,554.84/715,981.73
  6. Step 6: Final answer
    x = 612,931.36

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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.