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Finding the Fourth Proportional to 532,079.10, 734,284.76 and 290,377.22

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Solution

The fourth proportional to 532,079.10, 734,284.76 and 290,377.22 is: 400,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,079.10 : 734,284.76 = 290,377.22 : x
  2. Step 2: Convert to fraction form
    532,079.10/734,284.76 = 290,377.22/x
  3. Step 3: Cross multiply
    532,079.10x = 734,284.76 × 290,377.22
  4. Step 4: Simplify right side
    532,079.10x = 213,219,562,718.32
  5. Step 5: Solve for x
    x = 213,219,562,718.32/532,079.10
  6. Step 6: Final answer
    x = 400,729.07

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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.