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Finding the Fourth Proportional to 350,654.40, 525,981.60 and 201,355.20

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Solution

The fourth proportional to 350,654.40, 525,981.60 and 201,355.20 is: 302,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,654.40 : 525,981.60 = 201,355.20 : x
  2. Step 2: Convert to fraction form
    350,654.40/525,981.60 = 201,355.20/x
  3. Step 3: Cross multiply
    350,654.40x = 525,981.60 × 201,355.20
  4. Step 4: Simplify right side
    350,654.40x = 105,909,130,264.32
  5. Step 5: Solve for x
    x = 105,909,130,264.32/350,654.40
  6. Step 6: Final answer
    x = 302,032.80

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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.