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Finding the Fourth Proportional to 346,318.60, 519,477.90 and 188,854.60

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Solution

The fourth proportional to 346,318.60, 519,477.90 and 188,854.60 is: 283,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,318.60 : 519,477.90 = 188,854.60 : x
  2. Step 2: Convert to fraction form
    346,318.60/519,477.90 = 188,854.60/x
  3. Step 3: Cross multiply
    346,318.60x = 519,477.90 × 188,854.60
  4. Step 4: Simplify right side
    346,318.60x = 98,105,791,013.34
  5. Step 5: Solve for x
    x = 98,105,791,013.34/346,318.60
  6. Step 6: Final answer
    x = 283,281.90

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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.