Home / 663,653.02-915,918.93-377,216.17

Finding the Fourth Proportional to 663,653.02, 915,918.93 and 377,216.17

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Solution

The fourth proportional to 663,653.02, 915,918.93 and 377,216.17 is: 520,602.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,653.02 : 915,918.93 = 377,216.17 : x
  2. Step 2: Convert to fraction form
    663,653.02/915,918.93 = 377,216.17/x
  3. Step 3: Cross multiply
    663,653.02x = 915,918.93 × 377,216.17
  4. Step 4: Simplify right side
    663,653.02x = 345,499,430,805.10
  5. Step 5: Solve for x
    x = 345,499,430,805.10/663,653.02
  6. Step 6: Final answer
    x = 520,602.51

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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.