Home / 678,556.60-1,017,834.90-346,089.40

Finding the Fourth Proportional to 678,556.60, 1,017,834.90 and 346,089.40

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Solution

The fourth proportional to 678,556.60, 1,017,834.90 and 346,089.40 is: 519,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,556.60 : 1,017,834.90 = 346,089.40 : x
  2. Step 2: Convert to fraction form
    678,556.60/1,017,834.90 = 346,089.40/x
  3. Step 3: Cross multiply
    678,556.60x = 1,017,834.90 × 346,089.40
  4. Step 4: Simplify right side
    678,556.60x = 352,261,869,840.06
  5. Step 5: Solve for x
    x = 352,261,869,840.06/678,556.60
  6. Step 6: Final answer
    x = 519,134.10

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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.