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Finding the Fourth Proportional to 533,718.38, 736,649.60 and 368,378.49

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Solution

The fourth proportional to 533,718.38, 736,649.60 and 368,378.49 is: 508,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,718.38 : 736,649.60 = 368,378.49 : x
  2. Step 2: Convert to fraction form
    533,718.38/736,649.60 = 368,378.49/x
  3. Step 3: Cross multiply
    533,718.38x = 736,649.60 × 368,378.49
  4. Step 4: Simplify right side
    533,718.38x = 271,365,870,688.32
  5. Step 5: Solve for x
    x = 271,365,870,688.32/533,718.38
  6. Step 6: Final answer
    x = 508,443.93

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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.