Home / 913,536.60-1,260,648.34-505,639.23

Finding the Fourth Proportional to 913,536.60, 1,260,648.34 and 505,639.23

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Solution

The fourth proportional to 913,536.60, 1,260,648.34 and 505,639.23 is: 697,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,536.60 : 1,260,648.34 = 505,639.23 : x
  2. Step 2: Convert to fraction form
    913,536.60/1,260,648.34 = 505,639.23/x
  3. Step 3: Cross multiply
    913,536.60x = 1,260,648.34 × 505,639.23
  4. Step 4: Simplify right side
    913,536.60x = 637,433,255,938.38
  5. Step 5: Solve for x
    x = 637,433,255,938.38/913,536.60
  6. Step 6: Final answer
    x = 697,764.33

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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.