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Finding the Fourth Proportional to 371,123.80, 556,685.70 and 371,123.80

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Solution

The fourth proportional to 371,123.80, 556,685.70 and 371,123.80 is: 556,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,123.80 : 556,685.70 = 371,123.80 : x
  2. Step 2: Convert to fraction form
    371,123.80/556,685.70 = 371,123.80/x
  3. Step 3: Cross multiply
    371,123.80x = 556,685.70 × 371,123.80
  4. Step 4: Simplify right side
    371,123.80x = 206,599,312,389.66
  5. Step 5: Solve for x
    x = 206,599,312,389.66/371,123.80
  6. Step 6: Final answer
    x = 556,685.70

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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.