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Finding the Fourth Proportional to 519,971.44, 779,957.40 and 187,547.44

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Solution

The fourth proportional to 519,971.44, 779,957.40 and 187,547.44 is: 281,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,971.44 : 779,957.40 = 187,547.44 : x
  2. Step 2: Convert to fraction form
    519,971.44/779,957.40 = 187,547.44/x
  3. Step 3: Cross multiply
    519,971.44x = 779,957.40 × 187,547.44
  4. Step 4: Simplify right side
    519,971.44x = 146,279,013,679.06
  5. Step 5: Solve for x
    x = 146,279,013,679.06/519,971.44
  6. Step 6: Final answer
    x = 281,321.25

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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.