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Finding the Fourth Proportional to 922,907.60, 1,384,361.40 and 607,720.40

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Solution

The fourth proportional to 922,907.60, 1,384,361.40 and 607,720.40 is: 911,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,907.60 : 1,384,361.40 = 607,720.40 : x
  2. Step 2: Convert to fraction form
    922,907.60/1,384,361.40 = 607,720.40/x
  3. Step 3: Cross multiply
    922,907.60x = 1,384,361.40 × 607,720.40
  4. Step 4: Simplify right side
    922,907.60x = 841,304,663,752.56
  5. Step 5: Solve for x
    x = 841,304,663,752.56/922,907.60
  6. Step 6: Final answer
    x = 911,580.60

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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.