Home / 921,539.92-1,271,672.04-513,628.24

Finding the Fourth Proportional to 921,539.92, 1,271,672.04 and 513,628.24

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Solution

The fourth proportional to 921,539.92, 1,271,672.04 and 513,628.24 is: 708,777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,539.92 : 1,271,672.04 = 513,628.24 : x
  2. Step 2: Convert to fraction form
    921,539.92/1,271,672.04 = 513,628.24/x
  3. Step 3: Cross multiply
    921,539.92x = 1,271,672.04 × 513,628.24
  4. Step 4: Simplify right side
    921,539.92x = 653,166,671,762.41
  5. Step 5: Solve for x
    x = 653,166,671,762.41/921,539.92
  6. Step 6: Final answer
    x = 708,777.40

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Double scale
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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.