Home / 718,010.02-991,181.24-511,411.42

Finding the Fourth Proportional to 718,010.02, 991,181.24 and 511,411.42

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Solution

The fourth proportional to 718,010.02, 991,181.24 and 511,411.42 is: 705,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,010.02 : 991,181.24 = 511,411.42 : x
  2. Step 2: Convert to fraction form
    718,010.02/991,181.24 = 511,411.42/x
  3. Step 3: Cross multiply
    718,010.02x = 991,181.24 × 511,411.42
  4. Step 4: Simplify right side
    718,010.02x = 506,901,404,226.34
  5. Step 5: Solve for x
    x = 506,901,404,226.34/718,010.02
  6. Step 6: Final answer
    x = 705,980.96

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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.