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Finding the Fourth Proportional to 624,920.30, 935,011.20 and 414,968.30

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Solution

The fourth proportional to 624,920.30, 935,011.20 and 414,968.30 is: 620,879.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,920.30 : 935,011.20 = 414,968.30 : x
  2. Step 2: Convert to fraction form
    624,920.30/935,011.20 = 414,968.30/x
  3. Step 3: Cross multiply
    624,920.30x = 935,011.20 × 414,968.30
  4. Step 4: Simplify right side
    624,920.30x = 388,000,008,144.96
  5. Step 5: Solve for x
    x = 388,000,008,144.96/624,920.30
  6. Step 6: Final answer
    x = 620,879.19

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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.