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Finding the Fourth Proportional to 406,440.55, 560,880.60 and 225,151.93

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Solution

The fourth proportional to 406,440.55, 560,880.60 and 225,151.93 is: 310,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,440.55 : 560,880.60 = 225,151.93 : x
  2. Step 2: Convert to fraction form
    406,440.55/560,880.60 = 225,151.93/x
  3. Step 3: Cross multiply
    406,440.55x = 560,880.60 × 225,151.93
  4. Step 4: Simplify right side
    406,440.55x = 126,283,346,785.16
  5. Step 5: Solve for x
    x = 126,283,346,785.16/406,440.55
  6. Step 6: Final answer
    x = 310,705.58

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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.