Home / 868,645.19-1,302,986.70-611,426.64

Finding the Fourth Proportional to 868,645.19, 1,302,986.70 and 611,426.64

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Solution

The fourth proportional to 868,645.19, 1,302,986.70 and 611,426.64 is: 917,153.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,645.19 : 1,302,986.70 = 611,426.64 : x
  2. Step 2: Convert to fraction form
    868,645.19/1,302,986.70 = 611,426.64/x
  3. Step 3: Cross multiply
    868,645.19x = 1,302,986.70 × 611,426.64
  4. Step 4: Simplify right side
    868,645.19x = 796,680,779,945.69
  5. Step 5: Solve for x
    x = 796,680,779,945.69/868,645.19
  6. Step 6: Final answer
    x = 917,153.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.