Home / 878,258.76-1,211,529.55-534,199.92

Finding the Fourth Proportional to 878,258.76, 1,211,529.55 and 534,199.92

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Solution

The fourth proportional to 878,258.76, 1,211,529.55 and 534,199.92 is: 736,911.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,258.76 : 1,211,529.55 = 534,199.92 : x
  2. Step 2: Convert to fraction form
    878,258.76/1,211,529.55 = 534,199.92/x
  3. Step 3: Cross multiply
    878,258.76x = 1,211,529.55 × 534,199.92
  4. Step 4: Simplify right side
    878,258.76x = 647,198,988,687.64
  5. Step 5: Solve for x
    x = 647,198,988,687.64/878,258.76
  6. Step 6: Final answer
    x = 736,911.51

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Half scale
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Double scale
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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.