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Finding the Fourth Proportional to 879,333.96, 1,318,114.80 and 346,648.80

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Solution

The fourth proportional to 879,333.96, 1,318,114.80 and 346,648.80 is: 519,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,333.96 : 1,318,114.80 = 346,648.80 : x
  2. Step 2: Convert to fraction form
    879,333.96/1,318,114.80 = 346,648.80/x
  3. Step 3: Cross multiply
    879,333.96x = 1,318,114.80 × 346,648.80
  4. Step 4: Simplify right side
    879,333.96x = 456,922,913,682.24
  5. Step 5: Solve for x
    x = 456,922,913,682.24/879,333.96
  6. Step 6: Final answer
    x = 519,623.87

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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.