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Finding the Fourth Proportional to 607,621.28, 838,534.28 and 335,706.71

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Solution

The fourth proportional to 607,621.28, 838,534.28 and 335,706.71 is: 463,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,621.28 : 838,534.28 = 335,706.71 : x
  2. Step 2: Convert to fraction form
    607,621.28/838,534.28 = 335,706.71/x
  3. Step 3: Cross multiply
    607,621.28x = 838,534.28 × 335,706.71
  4. Step 4: Simplify right side
    607,621.28x = 281,501,578,489.81
  5. Step 5: Solve for x
    x = 281,501,578,489.81/607,621.28
  6. Step 6: Final answer
    x = 463,284.60

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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.