Home / 688,316.68-949,733.04-416,331.34

Finding the Fourth Proportional to 688,316.68, 949,733.04 and 416,331.34

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Solution

The fourth proportional to 688,316.68, 949,733.04 and 416,331.34 is: 574,450.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,316.68 : 949,733.04 = 416,331.34 : x
  2. Step 2: Convert to fraction form
    688,316.68/949,733.04 = 416,331.34/x
  3. Step 3: Cross multiply
    688,316.68x = 949,733.04 × 416,331.34
  4. Step 4: Simplify right side
    688,316.68x = 395,403,629,185.47
  5. Step 5: Solve for x
    x = 395,403,629,185.47/688,316.68
  6. Step 6: Final answer
    x = 574,450.16

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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.