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Finding the Fourth Proportional to 608,283.20, 838,269.60 and 528,656.96

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Solution

The fourth proportional to 608,283.20, 838,269.60 and 528,656.96 is: 728,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,283.20 : 838,269.60 = 528,656.96 : x
  2. Step 2: Convert to fraction form
    608,283.20/838,269.60 = 528,656.96/x
  3. Step 3: Cross multiply
    608,283.20x = 838,269.60 × 528,656.96
  4. Step 4: Simplify right side
    608,283.20x = 443,157,058,396.42
  5. Step 5: Solve for x
    x = 443,157,058,396.42/608,283.20
  6. Step 6: Final answer
    x = 728,537.40

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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.