Home / 579,088.40-868,227.60-342,309.20

Finding the Fourth Proportional to 579,088.40, 868,227.60 and 342,309.20

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Solution

The fourth proportional to 579,088.40, 868,227.60 and 342,309.20 is: 513,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,088.40 : 868,227.60 = 342,309.20 : x
  2. Step 2: Convert to fraction form
    579,088.40/868,227.60 = 342,309.20/x
  3. Step 3: Cross multiply
    579,088.40x = 868,227.60 × 342,309.20
  4. Step 4: Simplify right side
    579,088.40x = 297,202,295,173.92
  5. Step 5: Solve for x
    x = 297,202,295,173.92/579,088.40
  6. Step 6: Final answer
    x = 513,224.40

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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.