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Finding the Fourth Proportional to 529,287.40, 793,931.10 and 403,316.20

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Solution

The fourth proportional to 529,287.40, 793,931.10 and 403,316.20 is: 604,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,287.40 : 793,931.10 = 403,316.20 : x
  2. Step 2: Convert to fraction form
    529,287.40/793,931.10 = 403,316.20/x
  3. Step 3: Cross multiply
    529,287.40x = 793,931.10 × 403,316.20
  4. Step 4: Simplify right side
    529,287.40x = 320,205,274,313.82
  5. Step 5: Solve for x
    x = 320,205,274,313.82/529,287.40
  6. Step 6: Final answer
    x = 604,974.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.