Home / 878,205.60-1,316,530.80-578,829.60

Finding the Fourth Proportional to 878,205.60, 1,316,530.80 and 578,829.60

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Solution

The fourth proportional to 878,205.60, 1,316,530.80 and 578,829.60 is: 867,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,205.60 : 1,316,530.80 = 578,829.60 : x
  2. Step 2: Convert to fraction form
    878,205.60/1,316,530.80 = 578,829.60/x
  3. Step 3: Cross multiply
    878,205.60x = 1,316,530.80 × 578,829.60
  4. Step 4: Simplify right side
    878,205.60x = 762,046,996,351.68
  5. Step 5: Solve for x
    x = 762,046,996,351.68/878,205.60
  6. Step 6: Final answer
    x = 867,731.88

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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.