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Finding the Fourth Proportional to 706,220.62, 974,543.09 and 383,927.90

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Solution

The fourth proportional to 706,220.62, 974,543.09 and 383,927.90 is: 529,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,220.62 : 974,543.09 = 383,927.90 : x
  2. Step 2: Convert to fraction form
    706,220.62/974,543.09 = 383,927.90/x
  3. Step 3: Cross multiply
    706,220.62x = 974,543.09 × 383,927.90
  4. Step 4: Simplify right side
    706,220.62x = 374,154,275,210.86
  5. Step 5: Solve for x
    x = 374,154,275,210.86/706,220.62
  6. Step 6: Final answer
    x = 529,798.01

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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.