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Finding the Fourth Proportional to 476,123.74, 657,080.60 and 261,264.37

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Solution

The fourth proportional to 476,123.74, 657,080.60 and 261,264.37 is: 360,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,123.74 : 657,080.60 = 261,264.37 : x
  2. Step 2: Convert to fraction form
    476,123.74/657,080.60 = 261,264.37/x
  3. Step 3: Cross multiply
    476,123.74x = 657,080.60 × 261,264.37
  4. Step 4: Simplify right side
    476,123.74x = 171,671,748,998.22
  5. Step 5: Solve for x
    x = 171,671,748,998.22/476,123.74
  6. Step 6: Final answer
    x = 360,561.20

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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.