Home / 857,570.00-1,286,028.20-288,798.50

Finding the Fourth Proportional to 857,570.00, 1,286,028.20 and 288,798.50

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Solution

The fourth proportional to 857,570.00, 1,286,028.20 and 288,798.50 is: 433,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,570.00 : 1,286,028.20 = 288,798.50 : x
  2. Step 2: Convert to fraction form
    857,570.00/1,286,028.20 = 288,798.50/x
  3. Step 3: Cross multiply
    857,570.00x = 1,286,028.20 × 288,798.50
  4. Step 4: Simplify right side
    857,570.00x = 371,403,007,243.57
  5. Step 5: Solve for x
    x = 371,403,007,243.57/857,570.00
  6. Step 6: Final answer
    x = 433,087.69

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Double scale
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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.