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Finding the Fourth Proportional to 427,088.40, 589,356.66 and 236,090.40

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Solution

The fourth proportional to 427,088.40, 589,356.66 and 236,090.40 is: 325,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,088.40 : 589,356.66 = 236,090.40 : x
  2. Step 2: Convert to fraction form
    427,088.40/589,356.66 = 236,090.40/x
  3. Step 3: Cross multiply
    427,088.40x = 589,356.66 × 236,090.40
  4. Step 4: Simplify right side
    427,088.40x = 139,141,449,602.06
  5. Step 5: Solve for x
    x = 139,141,449,602.06/427,088.40
  6. Step 6: Final answer
    x = 325,790.75

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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.