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Finding the Fourth Proportional to 466,028.94, 643,113.78 and 262,079.80

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Solution

The fourth proportional to 466,028.94, 643,113.78 and 262,079.80 is: 361,666.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,028.94 : 643,113.78 = 262,079.80 : x
  2. Step 2: Convert to fraction form
    466,028.94/643,113.78 = 262,079.80/x
  3. Step 3: Cross multiply
    466,028.94x = 643,113.78 × 262,079.80
  4. Step 4: Simplify right side
    466,028.94x = 168,547,130,839.64
  5. Step 5: Solve for x
    x = 168,547,130,839.64/466,028.94
  6. Step 6: Final answer
    x = 361,666.66

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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.