Home / 661,440.04-912,780.84-359,634.04

Finding the Fourth Proportional to 661,440.04, 912,780.84 and 359,634.04

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Solution

The fourth proportional to 661,440.04, 912,780.84 and 359,634.04 is: 496,291.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,440.04 : 912,780.84 = 359,634.04 : x
  2. Step 2: Convert to fraction form
    661,440.04/912,780.84 = 359,634.04/x
  3. Step 3: Cross multiply
    661,440.04x = 912,780.84 × 359,634.04
  4. Step 4: Simplify right side
    661,440.04x = 328,267,061,123.79
  5. Step 5: Solve for x
    x = 328,267,061,123.79/661,440.04
  6. Step 6: Final answer
    x = 496,291.49

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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.