Home / 626,990.32-865,605.30-412,753.17

Finding the Fourth Proportional to 626,990.32, 865,605.30 and 412,753.17

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Solution

The fourth proportional to 626,990.32, 865,605.30 and 412,753.17 is: 569,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,990.32 : 865,605.30 = 412,753.17 : x
  2. Step 2: Convert to fraction form
    626,990.32/865,605.30 = 412,753.17/x
  3. Step 3: Cross multiply
    626,990.32x = 865,605.30 × 412,753.17
  4. Step 4: Simplify right side
    626,990.32x = 357,281,331,543.80
  5. Step 5: Solve for x
    x = 357,281,331,543.80/626,990.32
  6. Step 6: Final answer
    x = 569,835.48

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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.