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Finding the Fourth Proportional to 562,654.80, 776,554.08 and 321,016.24

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Solution

The fourth proportional to 562,654.80, 776,554.08 and 321,016.24 is: 443,054.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,654.80 : 776,554.08 = 321,016.24 : x
  2. Step 2: Convert to fraction form
    562,654.80/776,554.08 = 321,016.24/x
  3. Step 3: Cross multiply
    562,654.80x = 776,554.08 × 321,016.24
  4. Step 4: Simplify right side
    562,654.80x = 249,286,470,918.26
  5. Step 5: Solve for x
    x = 249,286,470,918.26/562,654.80
  6. Step 6: Final answer
    x = 443,054.02

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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.