Home / 640,938.20-960,140.10-562,141.40

Finding the Fourth Proportional to 640,938.20, 960,140.10 and 562,141.40

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Solution

The fourth proportional to 640,938.20, 960,140.10 and 562,141.40 is: 842,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,938.20 : 960,140.10 = 562,141.40 : x
  2. Step 2: Convert to fraction form
    640,938.20/960,140.10 = 562,141.40/x
  3. Step 3: Cross multiply
    640,938.20x = 960,140.10 × 562,141.40
  4. Step 4: Simplify right side
    640,938.20x = 539,734,500,010.14
  5. Step 5: Solve for x
    x = 539,734,500,010.14/640,938.20
  6. Step 6: Final answer
    x = 842,100.69

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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.