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Finding the Fourth Proportional to 671,612.80, 1,007,419.20 and 598,129.60

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Solution

The fourth proportional to 671,612.80, 1,007,419.20 and 598,129.60 is: 897,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,612.80 : 1,007,419.20 = 598,129.60 : x
  2. Step 2: Convert to fraction form
    671,612.80/1,007,419.20 = 598,129.60/x
  3. Step 3: Cross multiply
    671,612.80x = 1,007,419.20 × 598,129.60
  4. Step 4: Simplify right side
    671,612.80x = 602,567,243,128.32
  5. Step 5: Solve for x
    x = 602,567,243,128.32/671,612.80
  6. Step 6: Final answer
    x = 897,194.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.