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Finding the Fourth Proportional to 555,761.80, 766,941.26 and 314,039.17

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Solution

The fourth proportional to 555,761.80, 766,941.26 and 314,039.17 is: 433,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,761.80 : 766,941.26 = 314,039.17 : x
  2. Step 2: Convert to fraction form
    555,761.80/766,941.26 = 314,039.17/x
  3. Step 3: Cross multiply
    555,761.80x = 766,941.26 × 314,039.17
  4. Step 4: Simplify right side
    555,761.80x = 240,849,596,729.15
  5. Step 5: Solve for x
    x = 240,849,596,729.15/555,761.80
  6. Step 6: Final answer
    x = 433,368.39

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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.