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Finding the Fourth Proportional to 528,074.40, 792,111.60 and 173,124.30

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Solution

The fourth proportional to 528,074.40, 792,111.60 and 173,124.30 is: 259,686.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,074.40 : 792,111.60 = 173,124.30 : x
  2. Step 2: Convert to fraction form
    528,074.40/792,111.60 = 173,124.30/x
  3. Step 3: Cross multiply
    528,074.40x = 792,111.60 × 173,124.30
  4. Step 4: Simplify right side
    528,074.40x = 137,133,766,271.88
  5. Step 5: Solve for x
    x = 137,133,766,271.88/528,074.40
  6. Step 6: Final answer
    x = 259,686.45

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Double scale
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Similar ratio
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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.