Home / 1,686,430.80-2,528,771.40-620,924.40

Finding the Fourth Proportional to 1,686,430.80, 2,528,771.40 and 620,924.40

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Solution

The fourth proportional to 1,686,430.80, 2,528,771.40 and 620,924.40 is: 931,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,430.80 : 2,528,771.40 = 620,924.40 : x
  2. Step 2: Convert to fraction form
    1,686,430.80/2,528,771.40 = 620,924.40/x
  3. Step 3: Cross multiply
    1,686,430.80x = 2,528,771.40 × 620,924.40
  4. Step 4: Simplify right side
    1,686,430.80x = 1,570,175,864,282.16
  5. Step 5: Solve for x
    x = 1,570,175,864,282.16/1,686,430.80
  6. Step 6: Final answer
    x = 931,064.51

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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.