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Finding the Fourth Proportional to 1,147,248.02, 1,583,203.57 and 637,939.46

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Solution

The fourth proportional to 1,147,248.02, 1,583,203.57 and 637,939.46 is: 880,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,248.02 : 1,583,203.57 = 637,939.46 : x
  2. Step 2: Convert to fraction form
    1,147,248.02/1,583,203.57 = 637,939.46/x
  3. Step 3: Cross multiply
    1,147,248.02x = 1,583,203.57 × 637,939.46
  4. Step 4: Simplify right side
    1,147,248.02x = 1,009,988,030,515.87
  5. Step 5: Solve for x
    x = 1,009,988,030,515.87/1,147,248.02
  6. Step 6: Final answer
    x = 880,357.18

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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.