Home / 921,608.89-1,271,847.23-539,599.93

Finding the Fourth Proportional to 921,608.89, 1,271,847.23 and 539,599.93

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Solution

The fourth proportional to 921,608.89, 1,271,847.23 and 539,599.93 is: 744,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,608.89 : 1,271,847.23 = 539,599.93 : x
  2. Step 2: Convert to fraction form
    921,608.89/1,271,847.23 = 539,599.93/x
  3. Step 3: Cross multiply
    921,608.89x = 1,271,847.23 × 539,599.93
  4. Step 4: Simplify right side
    921,608.89x = 686,288,673,580.69
  5. Step 5: Solve for x
    x = 686,288,673,580.69/921,608.89
  6. Step 6: Final answer
    x = 744,663.69

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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.