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Finding the Fourth Proportional to 532,657.55, 734,876.42 and 314,820.51

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Solution

The fourth proportional to 532,657.55, 734,876.42 and 314,820.51 is: 434,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,657.55 : 734,876.42 = 314,820.51 : x
  2. Step 2: Convert to fraction form
    532,657.55/734,876.42 = 314,820.51/x
  3. Step 3: Cross multiply
    532,657.55x = 734,876.42 × 314,820.51
  4. Step 4: Simplify right side
    532,657.55x = 231,354,169,331.37
  5. Step 5: Solve for x
    x = 231,354,169,331.37/532,657.55
  6. Step 6: Final answer
    x = 434,339.42

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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.