Home / 1,287,466.67-1,931,200.01-686,607.45

Finding the Fourth Proportional to 1,287,466.67, 1,931,200.01 and 686,607.45

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Solution

The fourth proportional to 1,287,466.67, 1,931,200.01 and 686,607.45 is: 1,029,911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,466.67 : 1,931,200.01 = 686,607.45 : x
  2. Step 2: Convert to fraction form
    1,287,466.67/1,931,200.01 = 686,607.45/x
  3. Step 3: Cross multiply
    1,287,466.67x = 1,931,200.01 × 686,607.45
  4. Step 4: Simplify right side
    1,287,466.67x = 1,325,976,310,873.04
  5. Step 5: Solve for x
    x = 1,325,976,310,873.04/1,287,466.67
  6. Step 6: Final answer
    x = 1,029,911.18

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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.