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Finding the Fourth Proportional to 1,174,430, 1,620,715.02 and 637,886

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Solution

The fourth proportional to 1,174,430, 1,620,715.02 and 637,886 is: 880,283.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,430 : 1,620,715.02 = 637,886 : x
  2. Step 2: Convert to fraction form
    1,174,430/1,620,715.02 = 637,886/x
  3. Step 3: Cross multiply
    1,174,430x = 1,620,715.02 × 637,886
  4. Step 4: Simplify right side
    1,174,430x = 1,033,831,421,247.72
  5. Step 5: Solve for x
    x = 1,033,831,421,247.72/1,174,430
  6. Step 6: Final answer
    x = 880,283.56

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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.