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Finding the Fourth Proportional to 572,009.74, 857,678.16 and 217,048.70

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Solution

The fourth proportional to 572,009.74, 857,678.16 and 217,048.70 is: 325,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,009.74 : 857,678.16 = 217,048.70 : x
  2. Step 2: Convert to fraction form
    572,009.74/857,678.16 = 217,048.70/x
  3. Step 3: Cross multiply
    572,009.74x = 857,678.16 × 217,048.70
  4. Step 4: Simplify right side
    572,009.74x = 186,157,929,646.39
  5. Step 5: Solve for x
    x = 186,157,929,646.39/572,009.74
  6. Step 6: Final answer
    x = 325,445.38

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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.