Home / 825,181.58-1,139,123.63-519,706.87

Finding the Fourth Proportional to 825,181.58, 1,139,123.63 and 519,706.87

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Solution

The fourth proportional to 825,181.58, 1,139,123.63 and 519,706.87 is: 717,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,181.58 : 1,139,123.63 = 519,706.87 : x
  2. Step 2: Convert to fraction form
    825,181.58/1,139,123.63 = 519,706.87/x
  3. Step 3: Cross multiply
    825,181.58x = 1,139,123.63 × 519,706.87
  4. Step 4: Simplify right side
    825,181.58x = 592,010,376,290.34
  5. Step 5: Solve for x
    x = 592,010,376,290.34/825,181.58
  6. Step 6: Final answer
    x = 717,430.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.