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Finding the Fourth Proportional to 651,164.40, 977,783.40 and 441,730.80

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Solution

The fourth proportional to 651,164.40, 977,783.40 and 441,730.80 is: 663,299.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,164.40 : 977,783.40 = 441,730.80 : x
  2. Step 2: Convert to fraction form
    651,164.40/977,783.40 = 441,730.80/x
  3. Step 3: Cross multiply
    651,164.40x = 977,783.40 × 441,730.80
  4. Step 4: Simplify right side
    651,164.40x = 431,917,043,508.72
  5. Step 5: Solve for x
    x = 431,917,043,508.72/651,164.40
  6. Step 6: Final answer
    x = 663,299.53

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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.