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Finding the Fourth Proportional to 682,813.80, 1,024,220.70 and 470,237.40

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Solution

The fourth proportional to 682,813.80, 1,024,220.70 and 470,237.40 is: 705,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,813.80 : 1,024,220.70 = 470,237.40 : x
  2. Step 2: Convert to fraction form
    682,813.80/1,024,220.70 = 470,237.40/x
  3. Step 3: Cross multiply
    682,813.80x = 1,024,220.70 × 470,237.40
  4. Step 4: Simplify right side
    682,813.80x = 481,626,878,994.18
  5. Step 5: Solve for x
    x = 481,626,878,994.18/682,813.80
  6. Step 6: Final answer
    x = 705,356.10

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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.