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Finding the Fourth Proportional to 583,134.88, 804,763.20 and 439,641.76

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Solution

The fourth proportional to 583,134.88, 804,763.20 and 439,641.76 is: 606,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,134.88 : 804,763.20 = 439,641.76 : x
  2. Step 2: Convert to fraction form
    583,134.88/804,763.20 = 439,641.76/x
  3. Step 3: Cross multiply
    583,134.88x = 804,763.20 × 439,641.76
  4. Step 4: Simplify right side
    583,134.88x = 353,807,509,631.23
  5. Step 5: Solve for x
    x = 353,807,509,631.23/583,134.88
  6. Step 6: Final answer
    x = 606,733.57

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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.