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Finding the Fourth Proportional to 706,125.40, 974,472 and 383,857.12

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Solution

The fourth proportional to 706,125.40, 974,472 and 383,857.12 is: 529,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,125.40 : 974,472 = 383,857.12 : x
  2. Step 2: Convert to fraction form
    706,125.40/974,472 = 383,857.12/x
  3. Step 3: Cross multiply
    706,125.40x = 974,472 × 383,857.12
  4. Step 4: Simplify right side
    706,125.40x = 374,058,015,440.64
  5. Step 5: Solve for x
    x = 374,058,015,440.64/706,125.40
  6. Step 6: Final answer
    x = 529,733.13

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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.