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Finding the Fourth Proportional to 418,798.18, 577,632.16 and 265,704.54

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Solution

The fourth proportional to 418,798.18, 577,632.16 and 265,704.54 is: 366,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,798.18 : 577,632.16 = 265,704.54 : x
  2. Step 2: Convert to fraction form
    418,798.18/577,632.16 = 265,704.54/x
  3. Step 3: Cross multiply
    418,798.18x = 577,632.16 × 265,704.54
  4. Step 4: Simplify right side
    418,798.18x = 153,479,487,362.01
  5. Step 5: Solve for x
    x = 153,479,487,362.01/418,798.18
  6. Step 6: Final answer
    x = 366,476.01

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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.