Home / 1,175,030-1,621,551.12-638,486

Finding the Fourth Proportional to 1,175,030, 1,621,551.12 and 638,486

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Solution

The fourth proportional to 1,175,030, 1,621,551.12 and 638,486 is: 881,115.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,030 : 1,621,551.12 = 638,486 : x
  2. Step 2: Convert to fraction form
    1,175,030/1,621,551.12 = 638,486/x
  3. Step 3: Cross multiply
    1,175,030x = 1,621,551.12 × 638,486
  4. Step 4: Simplify right side
    1,175,030x = 1,035,337,688,404.32
  5. Step 5: Solve for x
    x = 1,035,337,688,404.32/1,175,030
  6. Step 6: Final answer
    x = 881,115.96

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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.