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Finding the Fourth Proportional to 369,718.90, 510,212.43 and 199,953.03

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Solution

The fourth proportional to 369,718.90, 510,212.43 and 199,953.03 is: 275,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,718.90 : 510,212.43 = 199,953.03 : x
  2. Step 2: Convert to fraction form
    369,718.90/510,212.43 = 199,953.03/x
  3. Step 3: Cross multiply
    369,718.90x = 510,212.43 × 199,953.03
  4. Step 4: Simplify right side
    369,718.90x = 102,018,521,322.16
  5. Step 5: Solve for x
    x = 102,018,521,322.16/369,718.90
  6. Step 6: Final answer
    x = 275,935.37

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1.5x scale

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.