Home / 1,313,905.60-1,971,376.80-515,051.20

Finding the Fourth Proportional to 1,313,905.60, 1,971,376.80 and 515,051.20

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Solution

The fourth proportional to 1,313,905.60, 1,971,376.80 and 515,051.20 is: 772,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,905.60 : 1,971,376.80 = 515,051.20 : x
  2. Step 2: Convert to fraction form
    1,313,905.60/1,971,376.80 = 515,051.20/x
  3. Step 3: Cross multiply
    1,313,905.60x = 1,971,376.80 × 515,051.20
  4. Step 4: Simplify right side
    1,313,905.60x = 1,015,359,986,492.16
  5. Step 5: Solve for x
    x = 1,015,359,986,492.16/1,313,905.60
  6. Step 6: Final answer
    x = 772,780.01

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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.