Home / 620,623.48-856,167.42-530,942.80

Finding the Fourth Proportional to 620,623.48, 856,167.42 and 530,942.80

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Solution

The fourth proportional to 620,623.48, 856,167.42 and 530,942.80 is: 732,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,623.48 : 856,167.42 = 530,942.80 : x
  2. Step 2: Convert to fraction form
    620,623.48/856,167.42 = 530,942.80/x
  3. Step 3: Cross multiply
    620,623.48x = 856,167.42 × 530,942.80
  4. Step 4: Simplify right side
    620,623.48x = 454,575,927,243.58
  5. Step 5: Solve for x
    x = 454,575,927,243.58/620,623.48
  6. Step 6: Final answer
    x = 732,450.42

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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.