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Finding the Fourth Proportional to 657,760.94, 907,706.76 and 355,954.94

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Solution

The fourth proportional to 657,760.94, 907,706.76 and 355,954.94 is: 491,216.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,760.94 : 907,706.76 = 355,954.94 : x
  2. Step 2: Convert to fraction form
    657,760.94/907,706.76 = 355,954.94/x
  3. Step 3: Cross multiply
    657,760.94x = 907,706.76 × 355,954.94
  4. Step 4: Simplify right side
    657,760.94x = 323,102,705,293.39
  5. Step 5: Solve for x
    x = 323,102,705,293.39/657,760.94
  6. Step 6: Final answer
    x = 491,216.01

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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.