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Finding the Fourth Proportional to 615,894.80, 923,842.20 and 576,237.20

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Solution

The fourth proportional to 615,894.80, 923,842.20 and 576,237.20 is: 864,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,894.80 : 923,842.20 = 576,237.20 : x
  2. Step 2: Convert to fraction form
    615,894.80/923,842.20 = 576,237.20/x
  3. Step 3: Cross multiply
    615,894.80x = 923,842.20 × 576,237.20
  4. Step 4: Simplify right side
    615,894.80x = 532,352,242,569.84
  5. Step 5: Solve for x
    x = 532,352,242,569.84/615,894.80
  6. Step 6: Final answer
    x = 864,355.80

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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.