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Finding the Fourth Proportional to 560,928.70, 839,643.45 and 403,464.70

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Solution

The fourth proportional to 560,928.70, 839,643.45 and 403,464.70 is: 603,938.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,928.70 : 839,643.45 = 403,464.70 : x
  2. Step 2: Convert to fraction form
    560,928.70/839,643.45 = 403,464.70/x
  3. Step 3: Cross multiply
    560,928.70x = 839,643.45 × 403,464.70
  4. Step 4: Simplify right side
    560,928.70x = 338,766,492,661.22
  5. Step 5: Solve for x
    x = 338,766,492,661.22/560,928.70
  6. Step 6: Final answer
    x = 603,938.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.