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Finding the Fourth Proportional to 368,694.32, 553,256.14 and 155,448.88

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Solution

The fourth proportional to 368,694.32, 553,256.14 and 155,448.88 is: 233,263.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,694.32 : 553,256.14 = 155,448.88 : x
  2. Step 2: Convert to fraction form
    368,694.32/553,256.14 = 155,448.88/x
  3. Step 3: Cross multiply
    368,694.32x = 553,256.14 × 155,448.88
  4. Step 4: Simplify right side
    368,694.32x = 86,003,047,316.12
  5. Step 5: Solve for x
    x = 86,003,047,316.12/368,694.32
  6. Step 6: Final answer
    x = 233,263.82

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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.