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Finding the Fourth Proportional to 922,993.23, 1,384,636.23 and 390,518.25

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Solution

The fourth proportional to 922,993.23, 1,384,636.23 and 390,518.25 is: 585,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,993.23 : 1,384,636.23 = 390,518.25 : x
  2. Step 2: Convert to fraction form
    922,993.23/1,384,636.23 = 390,518.25/x
  3. Step 3: Cross multiply
    922,993.23x = 1,384,636.23 × 390,518.25
  4. Step 4: Simplify right side
    922,993.23x = 540,725,717,426.20
  5. Step 5: Solve for x
    x = 540,725,717,426.20/922,993.23
  6. Step 6: Final answer
    x = 585,839.31

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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.