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Finding the Fourth Proportional to 705,039.73, 972,015.26 and 560,328.71

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Solution

The fourth proportional to 705,039.73, 972,015.26 and 560,328.71 is: 772,506.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,039.73 : 972,015.26 = 560,328.71 : x
  2. Step 2: Convert to fraction form
    705,039.73/972,015.26 = 560,328.71/x
  3. Step 3: Cross multiply
    705,039.73x = 972,015.26 × 560,328.71
  4. Step 4: Simplify right side
    705,039.73x = 544,648,049,074.40
  5. Step 5: Solve for x
    x = 544,648,049,074.40/705,039.73
  6. Step 6: Final answer
    x = 772,506.89

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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.