Home / 670,355.70-1,005,533.55-621,148.20

Finding the Fourth Proportional to 670,355.70, 1,005,533.55 and 621,148.20

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Solution

The fourth proportional to 670,355.70, 1,005,533.55 and 621,148.20 is: 931,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,355.70 : 1,005,533.55 = 621,148.20 : x
  2. Step 2: Convert to fraction form
    670,355.70/1,005,533.55 = 621,148.20/x
  3. Step 3: Cross multiply
    670,355.70x = 1,005,533.55 × 621,148.20
  4. Step 4: Simplify right side
    670,355.70x = 624,585,354,622.11
  5. Step 5: Solve for x
    x = 624,585,354,622.11/670,355.70
  6. Step 6: Final answer
    x = 931,722.30

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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.