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Finding the Fourth Proportional to 706,039.49, 974,340.36 and 383,749.49

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Solution

The fourth proportional to 706,039.49, 974,340.36 and 383,749.49 is: 529,577.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,039.49 : 974,340.36 = 383,749.49 : x
  2. Step 2: Convert to fraction form
    706,039.49/974,340.36 = 383,749.49/x
  3. Step 3: Cross multiply
    706,039.49x = 974,340.36 × 383,749.49
  4. Step 4: Simplify right side
    706,039.49x = 373,902,611,364.72
  5. Step 5: Solve for x
    x = 373,902,611,364.72/706,039.49
  6. Step 6: Final answer
    x = 529,577.48

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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.