Home / 623,711.75-860,721.96-351,779.02

Finding the Fourth Proportional to 623,711.75, 860,721.96 and 351,779.02

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Solution

The fourth proportional to 623,711.75, 860,721.96 and 351,779.02 is: 485,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,711.75 : 860,721.96 = 351,779.02 : x
  2. Step 2: Convert to fraction form
    623,711.75/860,721.96 = 351,779.02/x
  3. Step 3: Cross multiply
    623,711.75x = 860,721.96 × 351,779.02
  4. Step 4: Simplify right side
    623,711.75x = 302,783,926,748.65
  5. Step 5: Solve for x
    x = 302,783,926,748.65/623,711.75
  6. Step 6: Final answer
    x = 485,454.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.