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Finding the Fourth Proportional to 692,449.76, 955,740.06 and 406,062.11

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Solution

The fourth proportional to 692,449.76, 955,740.06 and 406,062.11 is: 560,459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,449.76 : 955,740.06 = 406,062.11 : x
  2. Step 2: Convert to fraction form
    692,449.76/955,740.06 = 406,062.11/x
  3. Step 3: Cross multiply
    692,449.76x = 955,740.06 × 406,062.11
  4. Step 4: Simplify right side
    692,449.76x = 388,089,827,764.48
  5. Step 5: Solve for x
    x = 388,089,827,764.48/692,449.76
  6. Step 6: Final answer
    x = 560,459.18

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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.