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Finding the Fourth Proportional to 406,603.58, 561,116.23 and 225,318.53

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Solution

The fourth proportional to 406,603.58, 561,116.23 and 225,318.53 is: 310,941.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,603.58 : 561,116.23 = 225,318.53 : x
  2. Step 2: Convert to fraction form
    406,603.58/561,116.23 = 225,318.53/x
  3. Step 3: Cross multiply
    406,603.58x = 561,116.23 × 225,318.53
  4. Step 4: Simplify right side
    406,603.58x = 126,429,884,102.74
  5. Step 5: Solve for x
    x = 126,429,884,102.74/406,603.58
  6. Step 6: Final answer
    x = 310,941.39

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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.