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Finding the Fourth Proportional to 652,215.80, 978,323.70 and 473,756.60

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Solution

The fourth proportional to 652,215.80, 978,323.70 and 473,756.60 is: 710,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,215.80 : 978,323.70 = 473,756.60 : x
  2. Step 2: Convert to fraction form
    652,215.80/978,323.70 = 473,756.60/x
  3. Step 3: Cross multiply
    652,215.80x = 978,323.70 × 473,756.60
  4. Step 4: Simplify right side
    652,215.80x = 463,487,309,811.42
  5. Step 5: Solve for x
    x = 463,487,309,811.42/652,215.80
  6. Step 6: Final answer
    x = 710,634.90

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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.