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Finding the Fourth Proportional to 508,528.32, 702,030.40 and 358,296

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Solution

The fourth proportional to 508,528.32, 702,030.40 and 358,296 is: 494,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,528.32 : 702,030.40 = 358,296 : x
  2. Step 2: Convert to fraction form
    508,528.32/702,030.40 = 358,296/x
  3. Step 3: Cross multiply
    508,528.32x = 702,030.40 × 358,296
  4. Step 4: Simplify right side
    508,528.32x = 251,534,684,198.40
  5. Step 5: Solve for x
    x = 251,534,684,198.40/508,528.32
  6. Step 6: Final answer
    x = 494,632.60

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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.