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Finding the Fourth Proportional to 702,076, 968,471.22 and 430,275.64

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Solution

The fourth proportional to 702,076, 968,471.22 and 430,275.64 is: 593,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,076 : 968,471.22 = 430,275.64 : x
  2. Step 2: Convert to fraction form
    702,076/968,471.22 = 430,275.64/x
  3. Step 3: Cross multiply
    702,076x = 968,471.22 × 430,275.64
  4. Step 4: Simplify right side
    702,076x = 416,709,574,007.08
  5. Step 5: Solve for x
    x = 416,709,574,007.08/702,076
  6. Step 6: Final answer
    x = 593,539.12

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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.