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Finding the Fourth Proportional to 1,038,276, 1,432,820.88 and 561,348

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Solution

The fourth proportional to 1,038,276, 1,432,820.88 and 561,348 is: 774,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,276 : 1,432,820.88 = 561,348 : x
  2. Step 2: Convert to fraction form
    1,038,276/1,432,820.88 = 561,348/x
  3. Step 3: Cross multiply
    1,038,276x = 1,432,820.88 × 561,348
  4. Step 4: Simplify right side
    1,038,276x = 804,311,135,346.24
  5. Step 5: Solve for x
    x = 804,311,135,346.24/1,038,276
  6. Step 6: Final answer
    x = 774,660.24

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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.