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Finding the Fourth Proportional to 662,984.58, 914,894.34 and 405,293.16

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Solution

The fourth proportional to 662,984.58, 914,894.34 and 405,293.16 is: 559,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,984.58 : 914,894.34 = 405,293.16 : x
  2. Step 2: Convert to fraction form
    662,984.58/914,894.34 = 405,293.16/x
  3. Step 3: Cross multiply
    662,984.58x = 914,894.34 × 405,293.16
  4. Step 4: Simplify right side
    662,984.58x = 370,800,418,124.71
  5. Step 5: Solve for x
    x = 370,800,418,124.71/662,984.58
  6. Step 6: Final answer
    x = 559,289.66

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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.