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Finding the Fourth Proportional to 484,674.19, 668,865.78 and 303,328.15

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Solution

The fourth proportional to 484,674.19, 668,865.78 and 303,328.15 is: 418,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,674.19 : 668,865.78 = 303,328.15 : x
  2. Step 2: Convert to fraction form
    484,674.19/668,865.78 = 303,328.15/x
  3. Step 3: Cross multiply
    484,674.19x = 668,865.78 × 303,328.15
  4. Step 4: Simplify right side
    484,674.19x = 202,885,817,973.54
  5. Step 5: Solve for x
    x = 202,885,817,973.54/484,674.19
  6. Step 6: Final answer
    x = 418,602.48

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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.