Home / 921,505.57-1,271,683.59-513,633.31

Finding the Fourth Proportional to 921,505.57, 1,271,683.59 and 513,633.31

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Solution

The fourth proportional to 921,505.57, 1,271,683.59 and 513,633.31 is: 708,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,505.57 : 1,271,683.59 = 513,633.31 : x
  2. Step 2: Convert to fraction form
    921,505.57/1,271,683.59 = 513,633.31/x
  3. Step 3: Cross multiply
    921,505.57x = 1,271,683.59 × 513,633.31
  4. Step 4: Simplify right side
    921,505.57x = 653,179,051,604.38
  5. Step 5: Solve for x
    x = 653,179,051,604.38/921,505.57
  6. Step 6: Final answer
    x = 708,817.26

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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.