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Finding the Fourth Proportional to 473,909.40, 711,074.70 and 249,215.40

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Solution

The fourth proportional to 473,909.40, 711,074.70 and 249,215.40 is: 373,933.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,909.40 : 711,074.70 = 249,215.40 : x
  2. Step 2: Convert to fraction form
    473,909.40/711,074.70 = 249,215.40/x
  3. Step 3: Cross multiply
    473,909.40x = 711,074.70 × 249,215.40
  4. Step 4: Simplify right side
    473,909.40x = 177,210,765,790.38
  5. Step 5: Solve for x
    x = 177,210,765,790.38/473,909.40
  6. Step 6: Final answer
    x = 373,933.85

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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.