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Finding the Fourth Proportional to 571,430.70, 857,265.93 and 216,436.86

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Solution

The fourth proportional to 571,430.70, 857,265.93 and 216,436.86 is: 324,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,430.70 : 857,265.93 = 216,436.86 : x
  2. Step 2: Convert to fraction form
    571,430.70/857,265.93 = 216,436.86/x
  3. Step 3: Cross multiply
    571,430.70x = 857,265.93 × 216,436.86
  4. Step 4: Simplify right side
    571,430.70x = 185,543,946,074.18
  5. Step 5: Solve for x
    x = 185,543,946,074.18/571,430.70
  6. Step 6: Final answer
    x = 324,700.70

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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.