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Finding the Fourth Proportional to 556,936.71, 768,574.14 and 302,287.90

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Solution

The fourth proportional to 556,936.71, 768,574.14 and 302,287.90 is: 417,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,936.71 : 768,574.14 = 302,287.90 : x
  2. Step 2: Convert to fraction form
    556,936.71/768,574.14 = 302,287.90/x
  3. Step 3: Cross multiply
    556,936.71x = 768,574.14 × 302,287.90
  4. Step 4: Simplify right side
    556,936.71x = 232,330,662,774.91
  5. Step 5: Solve for x
    x = 232,330,662,774.91/556,936.71
  6. Step 6: Final answer
    x = 417,158.11

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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.