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Finding the Fourth Proportional to 451,970.40, 623,717.43 and 248,024.76

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Solution

The fourth proportional to 451,970.40, 623,717.43 and 248,024.76 is: 342,273.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,970.40 : 623,717.43 = 248,024.76 : x
  2. Step 2: Convert to fraction form
    451,970.40/623,717.43 = 248,024.76/x
  3. Step 3: Cross multiply
    451,970.40x = 623,717.43 × 248,024.76
  4. Step 4: Simplify right side
    451,970.40x = 154,697,365,883.57
  5. Step 5: Solve for x
    x = 154,697,365,883.57/451,970.40
  6. Step 6: Final answer
    x = 342,273.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.