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Finding the Fourth Proportional to 592,072.40, 889,030.20 and 343,240.40

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Solution

The fourth proportional to 592,072.40, 889,030.20 and 343,240.40 is: 515,394.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,072.40 : 889,030.20 = 343,240.40 : x
  2. Step 2: Convert to fraction form
    592,072.40/889,030.20 = 343,240.40/x
  3. Step 3: Cross multiply
    592,072.40x = 889,030.20 × 343,240.40
  4. Step 4: Simplify right side
    592,072.40x = 305,151,081,460.08
  5. Step 5: Solve for x
    x = 305,151,081,460.08/592,072.40
  6. Step 6: Final answer
    x = 515,394.88

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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.