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Finding the Fourth Proportional to 607,920.93, 839,035.07 and 353,419.74

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Solution

The fourth proportional to 607,920.93, 839,035.07 and 353,419.74 is: 487,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,920.93 : 839,035.07 = 353,419.74 : x
  2. Step 2: Convert to fraction form
    607,920.93/839,035.07 = 353,419.74/x
  3. Step 3: Cross multiply
    607,920.93x = 839,035.07 × 353,419.74
  4. Step 4: Simplify right side
    607,920.93x = 296,531,554,523.18
  5. Step 5: Solve for x
    x = 296,531,554,523.18/607,920.93
  6. Step 6: Final answer
    x = 487,779.81

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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.