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Finding the Fourth Proportional to 501,536.76, 692,120.66 and 286,681.44

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Solution

The fourth proportional to 501,536.76, 692,120.66 and 286,681.44 is: 395,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,536.76 : 692,120.66 = 286,681.44 : x
  2. Step 2: Convert to fraction form
    501,536.76/692,120.66 = 286,681.44/x
  3. Step 3: Cross multiply
    501,536.76x = 692,120.66 × 286,681.44
  4. Step 4: Simplify right side
    501,536.76x = 198,418,147,462.55
  5. Step 5: Solve for x
    x = 198,418,147,462.55/501,536.76
  6. Step 6: Final answer
    x = 395,620.35

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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.