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Finding the Fourth Proportional to 706,287.60, 974,899.80 and 451,639.80

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Solution

The fourth proportional to 706,287.60, 974,899.80 and 451,639.80 is: 623,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,287.60 : 974,899.80 = 451,639.80 : x
  2. Step 2: Convert to fraction form
    706,287.60/974,899.80 = 451,639.80/x
  3. Step 3: Cross multiply
    706,287.60x = 974,899.80 × 451,639.80
  4. Step 4: Simplify right side
    706,287.60x = 440,303,550,692.04
  5. Step 5: Solve for x
    x = 440,303,550,692.04/706,287.60
  6. Step 6: Final answer
    x = 623,405.47

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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.