Home / 626,678.20-864,724.64-358,354.36

Finding the Fourth Proportional to 626,678.20, 864,724.64 and 358,354.36

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Solution

The fourth proportional to 626,678.20, 864,724.64 and 358,354.36 is: 494,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,678.20 : 864,724.64 = 358,354.36 : x
  2. Step 2: Convert to fraction form
    626,678.20/864,724.64 = 358,354.36/x
  3. Step 3: Cross multiply
    626,678.20x = 864,724.64 × 358,354.36
  4. Step 4: Simplify right side
    626,678.20x = 309,877,844,943.43
  5. Step 5: Solve for x
    x = 309,877,844,943.43/626,678.20
  6. Step 6: Final answer
    x = 494,476.82

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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.