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Finding the Fourth Proportional to 419,874.04, 629,746.14 and 153,572.28

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Solution

The fourth proportional to 419,874.04, 629,746.14 and 153,572.28 is: 230,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,874.04 : 629,746.14 = 153,572.28 : x
  2. Step 2: Convert to fraction form
    419,874.04/629,746.14 = 153,572.28/x
  3. Step 3: Cross multiply
    419,874.04x = 629,746.14 × 153,572.28
  4. Step 4: Simplify right side
    419,874.04x = 96,711,550,541.00
  5. Step 5: Solve for x
    x = 96,711,550,541.00/419,874.04
  6. Step 6: Final answer
    x = 230,334.67

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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.