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Finding the Fourth Proportional to 353,124.60, 529,686.90 and 346,903.80

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Solution

The fourth proportional to 353,124.60, 529,686.90 and 346,903.80 is: 520,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,124.60 : 529,686.90 = 346,903.80 : x
  2. Step 2: Convert to fraction form
    353,124.60/529,686.90 = 346,903.80/x
  3. Step 3: Cross multiply
    353,124.60x = 529,686.90 × 346,903.80
  4. Step 4: Simplify right side
    353,124.60x = 183,750,398,420.22
  5. Step 5: Solve for x
    x = 183,750,398,420.22/353,124.60
  6. Step 6: Final answer
    x = 520,355.70

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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.