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Finding the Fourth Proportional to 712,968.84, 983,528.98 and 483,448.45

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Solution

The fourth proportional to 712,968.84, 983,528.98 and 483,448.45 is: 666,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,968.84 : 983,528.98 = 483,448.45 : x
  2. Step 2: Convert to fraction form
    712,968.84/983,528.98 = 483,448.45/x
  3. Step 3: Cross multiply
    712,968.84x = 983,528.98 × 483,448.45
  4. Step 4: Simplify right side
    712,968.84x = 475,485,560,911.08
  5. Step 5: Solve for x
    x = 475,485,560,911.08/712,968.84
  6. Step 6: Final answer
    x = 666,909.32

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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.