Home / 921,637.92-1,271,887.32-539,628.96

Finding the Fourth Proportional to 921,637.92, 1,271,887.32 and 539,628.96

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Solution

The fourth proportional to 921,637.92, 1,271,887.32 and 539,628.96 is: 744,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,637.92 : 1,271,887.32 = 539,628.96 : x
  2. Step 2: Convert to fraction form
    921,637.92/1,271,887.32 = 539,628.96/x
  3. Step 3: Cross multiply
    921,637.92x = 1,271,887.32 × 539,628.96
  4. Step 4: Simplify right side
    921,637.92x = 686,347,231,728.79
  5. Step 5: Solve for x
    x = 686,347,231,728.79/921,637.92
  6. Step 6: Final answer
    x = 744,703.77

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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.