Home / 817,062.40-1,223,174.40-607,628.80

Finding the Fourth Proportional to 817,062.40, 1,223,174.40 and 607,628.80

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Solution

The fourth proportional to 817,062.40, 1,223,174.40 and 607,628.80 is: 909,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,062.40 : 1,223,174.40 = 607,628.80 : x
  2. Step 2: Convert to fraction form
    817,062.40/1,223,174.40 = 607,628.80/x
  3. Step 3: Cross multiply
    817,062.40x = 1,223,174.40 × 607,628.80
  4. Step 4: Simplify right side
    817,062.40x = 743,235,992,862.72
  5. Step 5: Solve for x
    x = 743,235,992,862.72/817,062.40
  6. Step 6: Final answer
    x = 909,644.10

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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.