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Finding the Fourth Proportional to 671,062.64, 926,038.50 and 365,140.22

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Solution

The fourth proportional to 671,062.64, 926,038.50 and 365,140.22 is: 503,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,062.64 : 926,038.50 = 365,140.22 : x
  2. Step 2: Convert to fraction form
    671,062.64/926,038.50 = 365,140.22/x
  3. Step 3: Cross multiply
    671,062.64x = 926,038.50 × 365,140.22
  4. Step 4: Simplify right side
    671,062.64x = 338,133,901,618.47
  5. Step 5: Solve for x
    x = 338,133,901,618.47/671,062.64
  6. Step 6: Final answer
    x = 503,878.30

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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.