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Finding the Fourth Proportional to 624,705.12, 862,093.62 and 338,225.40

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Solution

The fourth proportional to 624,705.12, 862,093.62 and 338,225.40 is: 466,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,705.12 : 862,093.62 = 338,225.40 : x
  2. Step 2: Convert to fraction form
    624,705.12/862,093.62 = 338,225.40/x
  3. Step 3: Cross multiply
    624,705.12x = 862,093.62 × 338,225.40
  4. Step 4: Simplify right side
    624,705.12x = 291,581,959,461.95
  5. Step 5: Solve for x
    x = 291,581,959,461.95/624,705.12
  6. Step 6: Final answer
    x = 466,751.35

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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.