Home / 812,083.47-1,120,417.56-472,486.11

Finding the Fourth Proportional to 812,083.47, 1,120,417.56 and 472,486.11

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Solution

The fourth proportional to 812,083.47, 1,120,417.56 and 472,486.11 is: 651,880.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,083.47 : 1,120,417.56 = 472,486.11 : x
  2. Step 2: Convert to fraction form
    812,083.47/1,120,417.56 = 472,486.11/x
  3. Step 3: Cross multiply
    812,083.47x = 1,120,417.56 × 472,486.11
  4. Step 4: Simplify right side
    812,083.47x = 529,381,734,500.09
  5. Step 5: Solve for x
    x = 529,381,734,500.09/812,083.47
  6. Step 6: Final answer
    x = 651,880.94

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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.