Home / 921,385.20-1,271,554.92-539,535

Finding the Fourth Proportional to 921,385.20, 1,271,554.92 and 539,535

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Solution

The fourth proportional to 921,385.20, 1,271,554.92 and 539,535 is: 744,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,385.20 : 1,271,554.92 = 539,535 : x
  2. Step 2: Convert to fraction form
    921,385.20/1,271,554.92 = 539,535/x
  3. Step 3: Cross multiply
    921,385.20x = 1,271,554.92 × 539,535
  4. Step 4: Simplify right side
    921,385.20x = 686,048,383,762.20
  5. Step 5: Solve for x
    x = 686,048,383,762.20/921,385.20
  6. Step 6: Final answer
    x = 744,583.68

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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.