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Finding the Fourth Proportional to 615,678.30, 923,609.80 and 216,248.68

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Solution

The fourth proportional to 615,678.30, 923,609.80 and 216,248.68 is: 324,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,678.30 : 923,609.80 = 216,248.68 : x
  2. Step 2: Convert to fraction form
    615,678.30/923,609.80 = 216,248.68/x
  3. Step 3: Cross multiply
    615,678.30x = 923,609.80 × 216,248.68
  4. Step 4: Simplify right side
    615,678.30x = 199,729,400,085.06
  5. Step 5: Solve for x
    x = 199,729,400,085.06/615,678.30
  6. Step 6: Final answer
    x = 324,405.46

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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.