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Finding the Fourth Proportional to 573,447, 791,377.14 and 315,343.62

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Solution

The fourth proportional to 573,447, 791,377.14 and 315,343.62 is: 435,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,447 : 791,377.14 = 315,343.62 : x
  2. Step 2: Convert to fraction form
    573,447/791,377.14 = 315,343.62/x
  3. Step 3: Cross multiply
    573,447x = 791,377.14 × 315,343.62
  4. Step 4: Simplify right side
    573,447x = 249,555,732,112.85
  5. Step 5: Solve for x
    x = 249,555,732,112.85/573,447
  6. Step 6: Final answer
    x = 435,185.35

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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.