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Finding the Fourth Proportional to 319,615, 441,077.68 and 176,384.10

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Solution

The fourth proportional to 319,615, 441,077.68 and 176,384.10 is: 243,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,615 : 441,077.68 = 176,384.10 : x
  2. Step 2: Convert to fraction form
    319,615/441,077.68 = 176,384.10/x
  3. Step 3: Cross multiply
    319,615x = 441,077.68 × 176,384.10
  4. Step 4: Simplify right side
    319,615x = 77,799,089,616.89
  5. Step 5: Solve for x
    x = 77,799,089,616.89/319,615
  6. Step 6: Final answer
    x = 243,415.01

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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.