Home / 869,188.40-1,303,345.20-514,311.20

Finding the Fourth Proportional to 869,188.40, 1,303,345.20 and 514,311.20

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Solution

The fourth proportional to 869,188.40, 1,303,345.20 and 514,311.20 is: 771,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,188.40 : 1,303,345.20 = 514,311.20 : x
  2. Step 2: Convert to fraction form
    869,188.40/1,303,345.20 = 514,311.20/x
  3. Step 3: Cross multiply
    869,188.40x = 1,303,345.20 × 514,311.20
  4. Step 4: Simplify right side
    869,188.40x = 670,325,033,826.24
  5. Step 5: Solve for x
    x = 670,325,033,826.24/869,188.40
  6. Step 6: Final answer
    x = 771,207.98

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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.