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Finding the Fourth Proportional to 571,888.40, 857,573.40 and 216,784.40

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Solution

The fourth proportional to 571,888.40, 857,573.40 and 216,784.40 is: 325,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,888.40 : 857,573.40 = 216,784.40 : x
  2. Step 2: Convert to fraction form
    571,888.40/857,573.40 = 216,784.40/x
  3. Step 3: Cross multiply
    571,888.40x = 857,573.40 × 216,784.40
  4. Step 4: Simplify right side
    571,888.40x = 185,908,534,974.96
  5. Step 5: Solve for x
    x = 185,908,534,974.96/571,888.40
  6. Step 6: Final answer
    x = 325,078.35

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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.