Home / 626,669.78-864,914.74-354,753.14

Finding the Fourth Proportional to 626,669.78, 864,914.74 and 354,753.14

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Solution

The fourth proportional to 626,669.78, 864,914.74 and 354,753.14 is: 489,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,669.78 : 864,914.74 = 354,753.14 : x
  2. Step 2: Convert to fraction form
    626,669.78/864,914.74 = 354,753.14/x
  3. Step 3: Cross multiply
    626,669.78x = 864,914.74 × 354,753.14
  4. Step 4: Simplify right side
    626,669.78x = 306,831,214,635.83
  5. Step 5: Solve for x
    x = 306,831,214,635.83/626,669.78
  6. Step 6: Final answer
    x = 489,621.85

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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.