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Finding the Fourth Proportional to 386,598.56, 532,293.54 and 351,169.16

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Solution

The fourth proportional to 386,598.56, 532,293.54 and 351,169.16 is: 483,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,598.56 : 532,293.54 = 351,169.16 : x
  2. Step 2: Convert to fraction form
    386,598.56/532,293.54 = 351,169.16/x
  3. Step 3: Cross multiply
    386,598.56x = 532,293.54 × 351,169.16
  4. Step 4: Simplify right side
    386,598.56x = 186,925,075,315.23
  5. Step 5: Solve for x
    x = 186,925,075,315.23/386,598.56
  6. Step 6: Final answer
    x = 483,512.08

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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.