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Finding the Fourth Proportional to 469,528.40, 703,212.60 and 385,547.60

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Solution

The fourth proportional to 469,528.40, 703,212.60 and 385,547.60 is: 577,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,528.40 : 703,212.60 = 385,547.60 : x
  2. Step 2: Convert to fraction form
    469,528.40/703,212.60 = 385,547.60/x
  3. Step 3: Cross multiply
    469,528.40x = 703,212.60 × 385,547.60
  4. Step 4: Simplify right side
    469,528.40x = 271,121,930,219.76
  5. Step 5: Solve for x
    x = 271,121,930,219.76/469,528.40
  6. Step 6: Final answer
    x = 577,434.57

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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.