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Finding the Fourth Proportional to 369,123.80, 553,685.70 and 365,624.60

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Solution

The fourth proportional to 369,123.80, 553,685.70 and 365,624.60 is: 548,436.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,123.80 : 553,685.70 = 365,624.60 : x
  2. Step 2: Convert to fraction form
    369,123.80/553,685.70 = 365,624.60/x
  3. Step 3: Cross multiply
    369,123.80x = 553,685.70 × 365,624.60
  4. Step 4: Simplify right side
    369,123.80x = 202,441,112,588.22
  5. Step 5: Solve for x
    x = 202,441,112,588.22/369,123.80
  6. Step 6: Final answer
    x = 548,436.90

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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.