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Finding the Fourth Proportional to 501,696.16, 692,341.16 and 286,840.71

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Solution

The fourth proportional to 501,696.16, 692,341.16 and 286,840.71 is: 395,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,696.16 : 692,341.16 = 286,840.71 : x
  2. Step 2: Convert to fraction form
    501,696.16/692,341.16 = 286,840.71/x
  3. Step 3: Cross multiply
    501,696.16x = 692,341.16 × 286,840.71
  4. Step 4: Simplify right side
    501,696.16x = 198,591,628,462.42
  5. Step 5: Solve for x
    x = 198,591,628,462.42/501,696.16
  6. Step 6: Final answer
    x = 395,840.44

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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.