Home / 869,117.40-1,303,238.70-514,240.20

Finding the Fourth Proportional to 869,117.40, 1,303,238.70 and 514,240.20

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Solution

The fourth proportional to 869,117.40, 1,303,238.70 and 514,240.20 is: 771,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,117.40 : 1,303,238.70 = 514,240.20 : x
  2. Step 2: Convert to fraction form
    869,117.40/1,303,238.70 = 514,240.20/x
  3. Step 3: Cross multiply
    869,117.40x = 1,303,238.70 × 514,240.20
  4. Step 4: Simplify right side
    869,117.40x = 670,177,729,735.74
  5. Step 5: Solve for x
    x = 670,177,729,735.74/869,117.40
  6. Step 6: Final answer
    x = 771,101.50

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Double scale
Find fourth proportional to 869,118.40, 1,303,240.20 and 514,241.20
Similar ratio
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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.