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Finding the Fourth Proportional to 532,325.24, 734,619.95 and 290,618

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Solution

The fourth proportional to 532,325.24, 734,619.95 and 290,618 is: 401,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,325.24 : 734,619.95 = 290,618 : x
  2. Step 2: Convert to fraction form
    532,325.24/734,619.95 = 290,618/x
  3. Step 3: Cross multiply
    532,325.24x = 734,619.95 × 290,618
  4. Step 4: Simplify right side
    532,325.24x = 213,493,779,176.01
  5. Step 5: Solve for x
    x = 213,493,779,176.01/532,325.24
  6. Step 6: Final answer
    x = 401,058.91

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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.