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Finding the Fourth Proportional to 528,415.60, 792,719.40 and 173,330.80

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Solution

The fourth proportional to 528,415.60, 792,719.40 and 173,330.80 is: 260,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,415.60 : 792,719.40 = 173,330.80 : x
  2. Step 2: Convert to fraction form
    528,415.60/792,719.40 = 173,330.80/x
  3. Step 3: Cross multiply
    528,415.60x = 792,719.40 × 173,330.80
  4. Step 4: Simplify right side
    528,415.60x = 137,402,687,777.52
  5. Step 5: Solve for x
    x = 137,402,687,777.52/528,415.60
  6. Step 6: Final answer
    x = 260,027.69

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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.