Home / 688,541.58-949,909.94-416,136.56

Finding the Fourth Proportional to 688,541.58, 949,909.94 and 416,136.56

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Solution

The fourth proportional to 688,541.58, 949,909.94 and 416,136.56 is: 574,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,541.58 : 949,909.94 = 416,136.56 : x
  2. Step 2: Convert to fraction form
    688,541.58/949,909.94 = 416,136.56/x
  3. Step 3: Cross multiply
    688,541.58x = 949,909.94 × 416,136.56
  4. Step 4: Simplify right side
    688,541.58x = 395,292,254,741.41
  5. Step 5: Solve for x
    x = 395,292,254,741.41/688,541.58
  6. Step 6: Final answer
    x = 574,100.78

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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.