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Finding the Fourth Proportional to 407,185.47, 561,916.40 and 237,452.40

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Solution

The fourth proportional to 407,185.47, 561,916.40 and 237,452.40 is: 327,684.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,185.47 : 561,916.40 = 237,452.40 : x
  2. Step 2: Convert to fraction form
    407,185.47/561,916.40 = 237,452.40/x
  3. Step 3: Cross multiply
    407,185.47x = 561,916.40 × 237,452.40
  4. Step 4: Simplify right side
    407,185.47x = 133,428,397,779.36
  5. Step 5: Solve for x
    x = 133,428,397,779.36/407,185.47
  6. Step 6: Final answer
    x = 327,684.58

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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.