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Finding the Fourth Proportional to 371,388.28, 556,173.88 and 335,445.47

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Solution

The fourth proportional to 371,388.28, 556,173.88 and 335,445.47 is: 502,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,388.28 : 556,173.88 = 335,445.47 : x
  2. Step 2: Convert to fraction form
    371,388.28/556,173.88 = 335,445.47/x
  3. Step 3: Cross multiply
    371,388.28x = 556,173.88 × 335,445.47
  4. Step 4: Simplify right side
    371,388.28x = 186,566,006,901.10
  5. Step 5: Solve for x
    x = 186,566,006,901.10/371,388.28
  6. Step 6: Final answer
    x = 502,347.60

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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.