Home / 697,200.30-1,045,800.45-655,209.90

Finding the Fourth Proportional to 697,200.30, 1,045,800.45 and 655,209.90

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Solution

The fourth proportional to 697,200.30, 1,045,800.45 and 655,209.90 is: 982,814.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,200.30 : 1,045,800.45 = 655,209.90 : x
  2. Step 2: Convert to fraction form
    697,200.30/1,045,800.45 = 655,209.90/x
  3. Step 3: Cross multiply
    697,200.30x = 1,045,800.45 × 655,209.90
  4. Step 4: Simplify right side
    697,200.30x = 685,218,808,264.46
  5. Step 5: Solve for x
    x = 685,218,808,264.46/697,200.30
  6. Step 6: Final answer
    x = 982,814.85

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Double scale
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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.