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Finding the Fourth Proportional to 560,322.71, 773,257.61 and 305,673.69

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Solution

The fourth proportional to 560,322.71, 773,257.61 and 305,673.69 is: 421,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,322.71 : 773,257.61 = 305,673.69 : x
  2. Step 2: Convert to fraction form
    560,322.71/773,257.61 = 305,673.69/x
  3. Step 3: Cross multiply
    560,322.71x = 773,257.61 × 305,673.69
  4. Step 4: Simplify right side
    560,322.71x = 236,364,507,733.47
  5. Step 5: Solve for x
    x = 236,364,507,733.47/560,322.71
  6. Step 6: Final answer
    x = 421,836.39

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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.