Home / 877,974.77-1,316,356.99-345,556.93

Finding the Fourth Proportional to 877,974.77, 1,316,356.99 and 345,556.93

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Solution

The fourth proportional to 877,974.77, 1,316,356.99 and 345,556.93 is: 518,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,974.77 : 1,316,356.99 = 345,556.93 : x
  2. Step 2: Convert to fraction form
    877,974.77/1,316,356.99 = 345,556.93/x
  3. Step 3: Cross multiply
    877,974.77x = 1,316,356.99 × 345,556.93
  4. Step 4: Simplify right side
    877,974.77x = 454,876,280,248.44
  5. Step 5: Solve for x
    x = 454,876,280,248.44/877,974.77
  6. Step 6: Final answer
    x = 518,097.21

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.