Home / 859,657.60-1,287,028.80-527,881.60

Finding the Fourth Proportional to 859,657.60, 1,287,028.80 and 527,881.60

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Solution

The fourth proportional to 859,657.60, 1,287,028.80 and 527,881.60 is: 790,313.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,657.60 : 1,287,028.80 = 527,881.60 : x
  2. Step 2: Convert to fraction form
    859,657.60/1,287,028.80 = 527,881.60/x
  3. Step 3: Cross multiply
    859,657.60x = 1,287,028.80 × 527,881.60
  4. Step 4: Simplify right side
    859,657.60x = 679,398,822,190.08
  5. Step 5: Solve for x
    x = 679,398,822,190.08/859,657.60
  6. Step 6: Final answer
    x = 790,313.29

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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.