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Finding the Fourth Proportional to 409,583.20, 614,374.80 and 404,334.40

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Solution

The fourth proportional to 409,583.20, 614,374.80 and 404,334.40 is: 606,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,583.20 : 614,374.80 = 404,334.40 : x
  2. Step 2: Convert to fraction form
    409,583.20/614,374.80 = 404,334.40/x
  3. Step 3: Cross multiply
    409,583.20x = 614,374.80 × 404,334.40
  4. Step 4: Simplify right side
    409,583.20x = 248,412,866,133.12
  5. Step 5: Solve for x
    x = 248,412,866,133.12/409,583.20
  6. Step 6: Final answer
    x = 606,501.60

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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.