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Finding the Fourth Proportional to 620,376.30, 930,783.15 and 598,506.30

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Solution

The fourth proportional to 620,376.30, 930,783.15 and 598,506.30 is: 897,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,376.30 : 930,783.15 = 598,506.30 : x
  2. Step 2: Convert to fraction form
    620,376.30/930,783.15 = 598,506.30/x
  3. Step 3: Cross multiply
    620,376.30x = 930,783.15 × 598,506.30
  4. Step 4: Simplify right side
    620,376.30x = 557,079,579,208.85
  5. Step 5: Solve for x
    x = 557,079,579,208.85/620,376.30
  6. Step 6: Final answer
    x = 897,970.44

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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.