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Finding the Fourth Proportional to 706,089.60, 974,626.56 and 451,441.80

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Solution

The fourth proportional to 706,089.60, 974,626.56 and 451,441.80 is: 623,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,089.60 : 974,626.56 = 451,441.80 : x
  2. Step 2: Convert to fraction form
    706,089.60/974,626.56 = 451,441.80/x
  3. Step 3: Cross multiply
    706,089.60x = 974,626.56 × 451,441.80
  4. Step 4: Simplify right side
    706,089.60x = 439,987,168,574.21
  5. Step 5: Solve for x
    x = 439,987,168,574.21/706,089.60
  6. Step 6: Final answer
    x = 623,132.20

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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.