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Finding the Fourth Proportional to 607,929.96, 838,926.18 and 339,657.96

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Solution

The fourth proportional to 607,929.96, 838,926.18 and 339,657.96 is: 468,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,929.96 : 838,926.18 = 339,657.96 : x
  2. Step 2: Convert to fraction form
    607,929.96/838,926.18 = 339,657.96/x
  3. Step 3: Cross multiply
    607,929.96x = 838,926.18 × 339,657.96
  4. Step 4: Simplify right side
    607,929.96x = 284,947,954,889.39
  5. Step 5: Solve for x
    x = 284,947,954,889.39/607,929.96
  6. Step 6: Final answer
    x = 468,718.39

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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.