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Finding the Fourth Proportional to 651,278.40, 977,954.40 and 441,844.80

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Solution

The fourth proportional to 651,278.40, 977,954.40 and 441,844.80 is: 663,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,278.40 : 977,954.40 = 441,844.80 : x
  2. Step 2: Convert to fraction form
    651,278.40/977,954.40 = 441,844.80/x
  3. Step 3: Cross multiply
    651,278.40x = 977,954.40 × 441,844.80
  4. Step 4: Simplify right side
    651,278.40x = 432,104,066,277.12
  5. Step 5: Solve for x
    x = 432,104,066,277.12/651,278.40
  6. Step 6: Final answer
    x = 663,470.59

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Double scale
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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.