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Finding the Fourth Proportional to 303,401.04, 418,216.68 and 207,742.32

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Solution

The fourth proportional to 303,401.04, 418,216.68 and 207,742.32 is: 286,357.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,401.04 : 418,216.68 = 207,742.32 : x
  2. Step 2: Convert to fraction form
    303,401.04/418,216.68 = 207,742.32/x
  3. Step 3: Cross multiply
    303,401.04x = 418,216.68 × 207,742.32
  4. Step 4: Simplify right side
    303,401.04x = 86,881,303,365.90
  5. Step 5: Solve for x
    x = 86,881,303,365.90/303,401.04
  6. Step 6: Final answer
    x = 286,357.96

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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.