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Finding the Fourth Proportional to 328,436.83, 453,256.28 and 207,534.00

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Solution

The fourth proportional to 328,436.83, 453,256.28 and 207,534.00 is: 286,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,436.83 : 453,256.28 = 207,534.00 : x
  2. Step 2: Convert to fraction form
    328,436.83/453,256.28 = 207,534.00/x
  3. Step 3: Cross multiply
    328,436.83x = 453,256.28 × 207,534.00
  4. Step 4: Simplify right side
    328,436.83x = 94,066,089,324.58
  5. Step 5: Solve for x
    x = 94,066,089,324.58/328,436.83
  6. Step 6: Final answer
    x = 286,405.42

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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.