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Finding the Fourth Proportional to 424,851.40, 637,277.10 and 404,115.40

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Solution

The fourth proportional to 424,851.40, 637,277.10 and 404,115.40 is: 606,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,851.40 : 637,277.10 = 404,115.40 : x
  2. Step 2: Convert to fraction form
    424,851.40/637,277.10 = 404,115.40/x
  3. Step 3: Cross multiply
    424,851.40x = 637,277.10 × 404,115.40
  4. Step 4: Simplify right side
    424,851.40x = 257,533,490,177.34
  5. Step 5: Solve for x
    x = 257,533,490,177.34/424,851.40
  6. Step 6: Final answer
    x = 606,173.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.