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Finding the Fourth Proportional to 607,259, 838,017.42 and 338,987

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Solution

The fourth proportional to 607,259, 838,017.42 and 338,987 is: 467,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,259 : 838,017.42 = 338,987 : x
  2. Step 2: Convert to fraction form
    607,259/838,017.42 = 338,987/x
  3. Step 3: Cross multiply
    607,259x = 838,017.42 × 338,987
  4. Step 4: Simplify right side
    607,259x = 284,077,011,153.54
  5. Step 5: Solve for x
    x = 284,077,011,153.54/607,259
  6. Step 6: Final answer
    x = 467,802.06

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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.