Home / 718,114.77-990,953.32-395,807.13

Finding the Fourth Proportional to 718,114.77, 990,953.32 and 395,807.13

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Solution

The fourth proportional to 718,114.77, 990,953.32 and 395,807.13 is: 546,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,114.77 : 990,953.32 = 395,807.13 : x
  2. Step 2: Convert to fraction form
    718,114.77/990,953.32 = 395,807.13/x
  3. Step 3: Cross multiply
    718,114.77x = 990,953.32 × 395,807.13
  4. Step 4: Simplify right side
    718,114.77x = 392,226,389,553.17
  5. Step 5: Solve for x
    x = 392,226,389,553.17/718,114.77
  6. Step 6: Final answer
    x = 546,189.00

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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.