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Finding the Fourth Proportional to 522,047.70, 783,071.55 and 362,615.40

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Solution

The fourth proportional to 522,047.70, 783,071.55 and 362,615.40 is: 543,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,047.70 : 783,071.55 = 362,615.40 : x
  2. Step 2: Convert to fraction form
    522,047.70/783,071.55 = 362,615.40/x
  3. Step 3: Cross multiply
    522,047.70x = 783,071.55 × 362,615.40
  4. Step 4: Simplify right side
    522,047.70x = 283,953,803,331.87
  5. Step 5: Solve for x
    x = 283,953,803,331.87/522,047.70
  6. Step 6: Final answer
    x = 543,923.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.