Home / 921,511.64-1,271,531.88-513,524.05

Finding the Fourth Proportional to 921,511.64, 1,271,531.88 and 513,524.05

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Solution

The fourth proportional to 921,511.64, 1,271,531.88 and 513,524.05 is: 708,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,511.64 : 1,271,531.88 = 513,524.05 : x
  2. Step 2: Convert to fraction form
    921,511.64/1,271,531.88 = 513,524.05/x
  3. Step 3: Cross multiply
    921,511.64x = 1,271,531.88 × 513,524.05
  4. Step 4: Simplify right side
    921,511.64x = 652,962,200,721.71
  5. Step 5: Solve for x
    x = 652,962,200,721.71/921,511.64
  6. Step 6: Final answer
    x = 708,577.27

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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.