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Finding the Fourth Proportional to 705,363.86, 973,401.90 and 383,074.04

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Solution

The fourth proportional to 705,363.86, 973,401.90 and 383,074.04 is: 528,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,363.86 : 973,401.90 = 383,074.04 : x
  2. Step 2: Convert to fraction form
    705,363.86/973,401.90 = 383,074.04/x
  3. Step 3: Cross multiply
    705,363.86x = 973,401.90 × 383,074.04
  4. Step 4: Simplify right side
    705,363.86x = 372,884,998,376.68
  5. Step 5: Solve for x
    x = 372,884,998,376.68/705,363.86
  6. Step 6: Final answer
    x = 528,642.05

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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.