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Finding the Fourth Proportional to 1,569,754.60, 2,354,631.90 and 938,343.40

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Solution

The fourth proportional to 1,569,754.60, 2,354,631.90 and 938,343.40 is: 1,407,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,754.60 : 2,354,631.90 = 938,343.40 : x
  2. Step 2: Convert to fraction form
    1,569,754.60/2,354,631.90 = 938,343.40/x
  3. Step 3: Cross multiply
    1,569,754.60x = 2,354,631.90 × 938,343.40
  4. Step 4: Simplify right side
    1,569,754.60x = 2,209,453,302,794.46
  5. Step 5: Solve for x
    x = 2,209,453,302,794.46/1,569,754.60
  6. Step 6: Final answer
    x = 1,407,515.10

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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.