Home / 699,205.04-964,931.76-393,295.72

Finding the Fourth Proportional to 699,205.04, 964,931.76 and 393,295.72

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Solution

The fourth proportional to 699,205.04, 964,931.76 and 393,295.72 is: 542,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,205.04 : 964,931.76 = 393,295.72 : x
  2. Step 2: Convert to fraction form
    699,205.04/964,931.76 = 393,295.72/x
  3. Step 3: Cross multiply
    699,205.04x = 964,931.76 × 393,295.72
  4. Step 4: Simplify right side
    699,205.04x = 379,503,531,300.07
  5. Step 5: Solve for x
    x = 379,503,531,300.07/699,205.04
  6. Step 6: Final answer
    x = 542,764.30

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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.