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Finding the Fourth Proportional to 1,430,900.22, 1,973,820.08 and 893,423.10

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Solution

The fourth proportional to 1,430,900.22, 1,973,820.08 and 893,423.10 is: 1,232,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,900.22 : 1,973,820.08 = 893,423.10 : x
  2. Step 2: Convert to fraction form
    1,430,900.22/1,973,820.08 = 893,423.10/x
  3. Step 3: Cross multiply
    1,430,900.22x = 1,973,820.08 × 893,423.10
  4. Step 4: Simplify right side
    1,430,900.22x = 1,763,456,454,715.85
  5. Step 5: Solve for x
    x = 1,763,456,454,715.85/1,430,900.22
  6. Step 6: Final answer
    x = 1,232,410.50

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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.