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Finding the Fourth Proportional to 581,762.16, 803,049.12 and 340,122.15

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Solution

The fourth proportional to 581,762.16, 803,049.12 and 340,122.15 is: 469,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,762.16 : 803,049.12 = 340,122.15 : x
  2. Step 2: Convert to fraction form
    581,762.16/803,049.12 = 340,122.15/x
  3. Step 3: Cross multiply
    581,762.16x = 803,049.12 × 340,122.15
  4. Step 4: Simplify right side
    581,762.16x = 273,134,793,250.01
  5. Step 5: Solve for x
    x = 273,134,793,250.01/581,762.16
  6. Step 6: Final answer
    x = 469,495.63

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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.