Home / 734,071.64-1,013,017.22-407,434.70

Finding the Fourth Proportional to 734,071.64, 1,013,017.22 and 407,434.70

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Solution

The fourth proportional to 734,071.64, 1,013,017.22 and 407,434.70 is: 562,258.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,071.64 : 1,013,017.22 = 407,434.70 : x
  2. Step 2: Convert to fraction form
    734,071.64/1,013,017.22 = 407,434.70/x
  3. Step 3: Cross multiply
    734,071.64x = 1,013,017.22 × 407,434.70
  4. Step 4: Simplify right side
    734,071.64x = 412,738,367,125.53
  5. Step 5: Solve for x
    x = 412,738,367,125.53/734,071.64
  6. Step 6: Final answer
    x = 562,258.97

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Double scale
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Similar ratio
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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.