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Finding the Fourth Proportional to 371,655.30, 554,674.39 and 335,783.10

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Solution

The fourth proportional to 371,655.30, 554,674.39 and 335,783.10 is: 501,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,655.30 : 554,674.39 = 335,783.10 : x
  2. Step 2: Convert to fraction form
    371,655.30/554,674.39 = 335,783.10/x
  3. Step 3: Cross multiply
    371,655.30x = 554,674.39 × 335,783.10
  4. Step 4: Simplify right side
    371,655.30x = 186,250,286,164.81
  5. Step 5: Solve for x
    x = 186,250,286,164.81/371,655.30
  6. Step 6: Final answer
    x = 501,137.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.