Home / 808,829.70-1,214,228.70-409,264.80

Finding the Fourth Proportional to 808,829.70, 1,214,228.70 and 409,264.80

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Solution

The fourth proportional to 808,829.70, 1,214,228.70 and 409,264.80 is: 614,395.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,829.70 : 1,214,228.70 = 409,264.80 : x
  2. Step 2: Convert to fraction form
    808,829.70/1,214,228.70 = 409,264.80/x
  3. Step 3: Cross multiply
    808,829.70x = 1,214,228.70 × 409,264.80
  4. Step 4: Simplify right side
    808,829.70x = 496,941,066,059.76
  5. Step 5: Solve for x
    x = 496,941,066,059.76/808,829.70
  6. Step 6: Final answer
    x = 614,395.18

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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.