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Finding the Fourth Proportional to 609,111.92, 912,582.56 and 519,455.84

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Solution

The fourth proportional to 609,111.92, 912,582.56 and 519,455.84 is: 778,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,111.92 : 912,582.56 = 519,455.84 : x
  2. Step 2: Convert to fraction form
    609,111.92/912,582.56 = 519,455.84/x
  3. Step 3: Cross multiply
    609,111.92x = 912,582.56 × 519,455.84
  4. Step 4: Simplify right side
    609,111.92x = 474,046,340,274.15
  5. Step 5: Solve for x
    x = 474,046,340,274.15/609,111.92
  6. Step 6: Final answer
    x = 778,258.19

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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.