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Finding the Fourth Proportional to 313,875.80, 470,813.70 and 301,628.60

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Solution

The fourth proportional to 313,875.80, 470,813.70 and 301,628.60 is: 452,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,875.80 : 470,813.70 = 301,628.60 : x
  2. Step 2: Convert to fraction form
    313,875.80/470,813.70 = 301,628.60/x
  3. Step 3: Cross multiply
    313,875.80x = 470,813.70 × 301,628.60
  4. Step 4: Simplify right side
    313,875.80x = 142,010,877,191.82
  5. Step 5: Solve for x
    x = 142,010,877,191.82/313,875.80
  6. Step 6: Final answer
    x = 452,442.90

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1.5x scale

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.