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Finding the Fourth Proportional to 620,924.28, 930,723.28 and 354,110.28

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Solution

The fourth proportional to 620,924.28, 930,723.28 and 354,110.28 is: 530,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,924.28 : 930,723.28 = 354,110.28 : x
  2. Step 2: Convert to fraction form
    620,924.28/930,723.28 = 354,110.28/x
  3. Step 3: Cross multiply
    620,924.28x = 930,723.28 × 354,110.28
  4. Step 4: Simplify right side
    620,924.28x = 329,578,681,283.32
  5. Step 5: Solve for x
    x = 329,578,681,283.32/620,924.28
  6. Step 6: Final answer
    x = 530,787.23

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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.