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Finding the Fourth Proportional to 546,087.60, 819,131.40 and 357,130.80

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Solution

The fourth proportional to 546,087.60, 819,131.40 and 357,130.80 is: 535,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,087.60 : 819,131.40 = 357,130.80 : x
  2. Step 2: Convert to fraction form
    546,087.60/819,131.40 = 357,130.80/x
  3. Step 3: Cross multiply
    546,087.60x = 819,131.40 × 357,130.80
  4. Step 4: Simplify right side
    546,087.60x = 292,537,052,187.12
  5. Step 5: Solve for x
    x = 292,537,052,187.12/546,087.60
  6. Step 6: Final answer
    x = 535,696.20

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Similar ratio
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1.5x scale

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.