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Finding the Fourth Proportional to 461,379.84, 637,018.92 and 298,431.24

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Solution

The fourth proportional to 461,379.84, 637,018.92 and 298,431.24 is: 412,038.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,379.84 : 637,018.92 = 298,431.24 : x
  2. Step 2: Convert to fraction form
    461,379.84/637,018.92 = 298,431.24/x
  3. Step 3: Cross multiply
    461,379.84x = 637,018.92 × 298,431.24
  4. Step 4: Simplify right side
    461,379.84x = 190,106,346,199.06
  5. Step 5: Solve for x
    x = 190,106,346,199.06/461,379.84
  6. Step 6: Final answer
    x = 412,038.69

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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.