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Finding the Fourth Proportional to 528,777.68, 792,948.92 and 262,440.40

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Solution

The fourth proportional to 528,777.68, 792,948.92 and 262,440.40 is: 393,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,777.68 : 792,948.92 = 262,440.40 : x
  2. Step 2: Convert to fraction form
    528,777.68/792,948.92 = 262,440.40/x
  3. Step 3: Cross multiply
    528,777.68x = 792,948.92 × 262,440.40
  4. Step 4: Simplify right side
    528,777.68x = 208,101,831,744.37
  5. Step 5: Solve for x
    x = 208,101,831,744.37/528,777.68
  6. Step 6: Final answer
    x = 393,552.60

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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.