Home / 910,880.20-1,257,125.43-528,907.06

Finding the Fourth Proportional to 910,880.20, 1,257,125.43 and 528,907.06

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Solution

The fourth proportional to 910,880.20, 1,257,125.43 and 528,907.06 is: 729,956.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,880.20 : 1,257,125.43 = 528,907.06 : x
  2. Step 2: Convert to fraction form
    910,880.20/1,257,125.43 = 528,907.06/x
  3. Step 3: Cross multiply
    910,880.20x = 1,257,125.43 × 528,907.06
  4. Step 4: Simplify right side
    910,880.20x = 664,902,515,232.54
  5. Step 5: Solve for x
    x = 664,902,515,232.54/910,880.20
  6. Step 6: Final answer
    x = 729,956.05

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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.