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Finding the Fourth Proportional to 355,030.14, 532,809.68 and 260,504.58

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Solution

The fourth proportional to 355,030.14, 532,809.68 and 260,504.58 is: 390,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,030.14 : 532,809.68 = 260,504.58 : x
  2. Step 2: Convert to fraction form
    355,030.14/532,809.68 = 260,504.58/x
  3. Step 3: Cross multiply
    355,030.14x = 532,809.68 × 260,504.58
  4. Step 4: Simplify right side
    355,030.14x = 138,799,361,908.33
  5. Step 5: Solve for x
    x = 138,799,361,908.33/355,030.14
  6. Step 6: Final answer
    x = 390,950.93

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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.