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Finding the Fourth Proportional to 497,775.40, 746,665.80 and 123,798.40

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Solution

The fourth proportional to 497,775.40, 746,665.80 and 123,798.40 is: 185,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,775.40 : 746,665.80 = 123,798.40 : x
  2. Step 2: Convert to fraction form
    497,775.40/746,665.80 = 123,798.40/x
  3. Step 3: Cross multiply
    497,775.40x = 746,665.80 × 123,798.40
  4. Step 4: Simplify right side
    497,775.40x = 92,436,031,374.72
  5. Step 5: Solve for x
    x = 92,436,031,374.72/497,775.40
  6. Step 6: Final answer
    x = 185,698.27

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1.5x scale

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.