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Finding the Fourth Proportional to 556,867.46, 768,477.49 and 302,218.64

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Solution

The fourth proportional to 556,867.46, 768,477.49 and 302,218.64 is: 417,061.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,867.46 : 768,477.49 = 302,218.64 : x
  2. Step 2: Convert to fraction form
    556,867.46/768,477.49 = 302,218.64/x
  3. Step 3: Cross multiply
    556,867.46x = 768,477.49 × 302,218.64
  4. Step 4: Simplify right side
    556,867.46x = 232,248,223,064.06
  5. Step 5: Solve for x
    x = 232,248,223,064.06/556,867.46
  6. Step 6: Final answer
    x = 417,061.94

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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.