Home / 579,219.60-867,079.80-509,235.60

Finding the Fourth Proportional to 579,219.60, 867,079.80 and 509,235.60

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Solution

The fourth proportional to 579,219.60, 867,079.80 and 509,235.60 is: 762,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,219.60 : 867,079.80 = 509,235.60 : x
  2. Step 2: Convert to fraction form
    579,219.60/867,079.80 = 509,235.60/x
  3. Step 3: Cross multiply
    579,219.60x = 867,079.80 × 509,235.60
  4. Step 4: Simplify right side
    579,219.60x = 441,547,902,200.88
  5. Step 5: Solve for x
    x = 441,547,902,200.88/579,219.60
  6. Step 6: Final answer
    x = 762,315.19

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1.5x scale

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.