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Finding the Fourth Proportional to 885,370.88, 1,221,809.28 and 482,960

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Solution

The fourth proportional to 885,370.88, 1,221,809.28 and 482,960 is: 666,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,370.88 : 1,221,809.28 = 482,960 : x
  2. Step 2: Convert to fraction form
    885,370.88/1,221,809.28 = 482,960/x
  3. Step 3: Cross multiply
    885,370.88x = 1,221,809.28 × 482,960
  4. Step 4: Simplify right side
    885,370.88x = 590,085,009,868.80
  5. Step 5: Solve for x
    x = 590,085,009,868.80/885,370.88
  6. Step 6: Final answer
    x = 666,483.42

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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.