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Finding the Fourth Proportional to 546,985.53, 754,892.50 and 305,290.59

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Solution

The fourth proportional to 546,985.53, 754,892.50 and 305,290.59 is: 421,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,985.53 : 754,892.50 = 305,290.59 : x
  2. Step 2: Convert to fraction form
    546,985.53/754,892.50 = 305,290.59/x
  3. Step 3: Cross multiply
    546,985.53x = 754,892.50 × 305,290.59
  4. Step 4: Simplify right side
    546,985.53x = 230,461,576,711.58
  5. Step 5: Solve for x
    x = 230,461,576,711.58/546,985.53
  6. Step 6: Final answer
    x = 421,330.30

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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.