Home / 805,506.79-1,111,561.32-442,945.93

Finding the Fourth Proportional to 805,506.79, 1,111,561.32 and 442,945.93

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Solution

The fourth proportional to 805,506.79, 1,111,561.32 and 442,945.93 is: 611,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,506.79 : 1,111,561.32 = 442,945.93 : x
  2. Step 2: Convert to fraction form
    805,506.79/1,111,561.32 = 442,945.93/x
  3. Step 3: Cross multiply
    805,506.79x = 1,111,561.32 × 442,945.93
  4. Step 4: Simplify right side
    805,506.79x = 492,361,562,639.43
  5. Step 5: Solve for x
    x = 492,361,562,639.43/805,506.79
  6. Step 6: Final answer
    x = 611,244.46

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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.