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Finding the Fourth Proportional to 571,925.80, 857,888.70 and 216,821.80

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Solution

The fourth proportional to 571,925.80, 857,888.70 and 216,821.80 is: 325,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,925.80 : 857,888.70 = 216,821.80 : x
  2. Step 2: Convert to fraction form
    571,925.80/857,888.70 = 216,821.80/x
  3. Step 3: Cross multiply
    571,925.80x = 857,888.70 × 216,821.80
  4. Step 4: Simplify right side
    571,925.80x = 186,008,972,133.66
  5. Step 5: Solve for x
    x = 186,008,972,133.66/571,925.80
  6. Step 6: Final answer
    x = 325,232.70

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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.