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Finding the Fourth Proportional to 736,000.40, 1,103,611.80 and 314,800.40

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Solution

The fourth proportional to 736,000.40, 1,103,611.80 and 314,800.40 is: 472,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    736,000.40 : 1,103,611.80 = 314,800.40 : x
  2. Step 2: Convert to fraction form
    736,000.40/1,103,611.80 = 314,800.40/x
  3. Step 3: Cross multiply
    736,000.40x = 1,103,611.80 × 314,800.40
  4. Step 4: Simplify right side
    736,000.40x = 347,417,436,084.72
  5. Step 5: Solve for x
    x = 347,417,436,084.72/736,000.40
  6. Step 6: Final answer
    x = 472,034.30

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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.