Home / 921,617.16-1,271,858.60-539,608.20

Finding the Fourth Proportional to 921,617.16, 1,271,858.60 and 539,608.20

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Solution

The fourth proportional to 921,617.16, 1,271,858.60 and 539,608.20 is: 744,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,617.16 : 1,271,858.60 = 539,608.20 : x
  2. Step 2: Convert to fraction form
    921,617.16/1,271,858.60 = 539,608.20/x
  3. Step 3: Cross multiply
    921,617.16x = 1,271,858.60 × 539,608.20
  4. Step 4: Simplify right side
    921,617.16x = 686,305,329,800.52
  5. Step 5: Solve for x
    x = 686,305,329,800.52/921,617.16
  6. Step 6: Final answer
    x = 744,675.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.