Home / 697,109.80-1,045,664.70-621,002.20

Finding the Fourth Proportional to 697,109.80, 1,045,664.70 and 621,002.20

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Solution

The fourth proportional to 697,109.80, 1,045,664.70 and 621,002.20 is: 931,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,109.80 : 1,045,664.70 = 621,002.20 : x
  2. Step 2: Convert to fraction form
    697,109.80/1,045,664.70 = 621,002.20/x
  3. Step 3: Cross multiply
    697,109.80x = 1,045,664.70 × 621,002.20
  4. Step 4: Simplify right side
    697,109.80x = 649,360,079,162.34
  5. Step 5: Solve for x
    x = 649,360,079,162.34/697,109.80
  6. Step 6: Final answer
    x = 931,503.30

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Similar ratio
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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.