Home / 921,495.84-1,271,676.99-513,586.32

Finding the Fourth Proportional to 921,495.84, 1,271,676.99 and 513,586.32

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Solution

The fourth proportional to 921,495.84, 1,271,676.99 and 513,586.32 is: 708,756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,495.84 : 1,271,676.99 = 513,586.32 : x
  2. Step 2: Convert to fraction form
    921,495.84/1,271,676.99 = 513,586.32/x
  3. Step 3: Cross multiply
    921,495.84x = 1,271,676.99 × 513,586.32
  4. Step 4: Simplify right side
    921,495.84x = 653,115,905,522.78
  5. Step 5: Solve for x
    x = 653,115,905,522.78/921,495.84
  6. Step 6: Final answer
    x = 708,756.22

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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.