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Finding the Fourth Proportional to 671,699.38, 925,368.48 and 467,398.96

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Solution

The fourth proportional to 671,699.38, 925,368.48 and 467,398.96 is: 643,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,699.38 : 925,368.48 = 467,398.96 : x
  2. Step 2: Convert to fraction form
    671,699.38/925,368.48 = 467,398.96/x
  3. Step 3: Cross multiply
    671,699.38x = 925,368.48 × 467,398.96
  4. Step 4: Simplify right side
    671,699.38x = 432,516,265,168.78
  5. Step 5: Solve for x
    x = 432,516,265,168.78/671,699.38
  6. Step 6: Final answer
    x = 643,913.45

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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.