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Finding the Fourth Proportional to 511,799.71, 706,279.65 and 282,366.67

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Solution

The fourth proportional to 511,799.71, 706,279.65 and 282,366.67 is: 389,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,799.71 : 706,279.65 = 282,366.67 : x
  2. Step 2: Convert to fraction form
    511,799.71/706,279.65 = 282,366.67/x
  3. Step 3: Cross multiply
    511,799.71x = 706,279.65 × 282,366.67
  4. Step 4: Simplify right side
    511,799.71x = 199,429,829,327.87
  5. Step 5: Solve for x
    x = 199,429,829,327.87/511,799.71
  6. Step 6: Final answer
    x = 389,663.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.