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Finding the Fourth Proportional to 464,448.10, 640,945.02 and 347,955.16

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Solution

The fourth proportional to 464,448.10, 640,945.02 and 347,955.16 is: 480,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,448.10 : 640,945.02 = 347,955.16 : x
  2. Step 2: Convert to fraction form
    464,448.10/640,945.02 = 347,955.16/x
  3. Step 3: Cross multiply
    464,448.10x = 640,945.02 × 347,955.16
  4. Step 4: Simplify right side
    464,448.10x = 223,020,126,985.30
  5. Step 5: Solve for x
    x = 223,020,126,985.30/464,448.10
  6. Step 6: Final answer
    x = 480,183.10

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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.