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Finding the Fourth Proportional to 659,468.40, 910,072.17 and 357,662.40

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Solution

The fourth proportional to 659,468.40, 910,072.17 and 357,662.40 is: 493,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,468.40 : 910,072.17 = 357,662.40 : x
  2. Step 2: Convert to fraction form
    659,468.40/910,072.17 = 357,662.40/x
  3. Step 3: Cross multiply
    659,468.40x = 910,072.17 × 357,662.40
  4. Step 4: Simplify right side
    659,468.40x = 325,498,596,495.41
  5. Step 5: Solve for x
    x = 325,498,596,495.41/659,468.40
  6. Step 6: Final answer
    x = 493,577.25

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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.