Home / 921,609.89-1,271,848.61-539,600.93

Finding the Fourth Proportional to 921,609.89, 1,271,848.61 and 539,600.93

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Solution

The fourth proportional to 921,609.89, 1,271,848.61 and 539,600.93 is: 744,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,609.89 : 1,271,848.61 = 539,600.93 : x
  2. Step 2: Convert to fraction form
    921,609.89/1,271,848.61 = 539,600.93/x
  3. Step 3: Cross multiply
    921,609.89x = 1,271,848.61 × 539,600.93
  4. Step 4: Simplify right side
    921,609.89x = 686,290,692,775.21
  5. Step 5: Solve for x
    x = 686,290,692,775.21/921,609.89
  6. Step 6: Final answer
    x = 744,665.07

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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.