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Finding the Fourth Proportional to 453,831.52, 626,458.88 and 356,782.20

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Solution

The fourth proportional to 453,831.52, 626,458.88 and 356,782.20 is: 492,494.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,831.52 : 626,458.88 = 356,782.20 : x
  2. Step 2: Convert to fraction form
    453,831.52/626,458.88 = 356,782.20/x
  3. Step 3: Cross multiply
    453,831.52x = 626,458.88 × 356,782.20
  4. Step 4: Simplify right side
    453,831.52x = 223,509,377,415.94
  5. Step 5: Solve for x
    x = 223,509,377,415.94/453,831.52
  6. Step 6: Final answer
    x = 492,494.17

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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.