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Finding the Fourth Proportional to 659,843.41, 990,465.03 and 584,431.50

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Solution

The fourth proportional to 659,843.41, 990,465.03 and 584,431.50 is: 877,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,843.41 : 990,465.03 = 584,431.50 : x
  2. Step 2: Convert to fraction form
    659,843.41/990,465.03 = 584,431.50/x
  3. Step 3: Cross multiply
    659,843.41x = 990,465.03 × 584,431.50
  4. Step 4: Simplify right side
    659,843.41x = 578,858,960,258.29
  5. Step 5: Solve for x
    x = 578,858,960,258.29/659,843.41
  6. Step 6: Final answer
    x = 877,267.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.