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Finding the Fourth Proportional to 697,694.80, 1,048,615.80 and 606,456.40

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Solution

The fourth proportional to 697,694.80, 1,048,615.80 and 606,456.40 is: 911,487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,694.80 : 1,048,615.80 = 606,456.40 : x
  2. Step 2: Convert to fraction form
    697,694.80/1,048,615.80 = 606,456.40/x
  3. Step 3: Cross multiply
    697,694.80x = 1,048,615.80 × 606,456.40
  4. Step 4: Simplify right side
    697,694.80x = 635,939,763,051.12
  5. Step 5: Solve for x
    x = 635,939,763,051.12/697,694.80
  6. Step 6: Final answer
    x = 911,487.03

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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.