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Finding the Fourth Proportional to 492,359.90, 738,831.45 and 358,904.30

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Solution

The fourth proportional to 492,359.90, 738,831.45 and 358,904.30 is: 538,569.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,359.90 : 738,831.45 = 358,904.30 : x
  2. Step 2: Convert to fraction form
    492,359.90/738,831.45 = 358,904.30/x
  3. Step 3: Cross multiply
    492,359.90x = 738,831.45 × 358,904.30
  4. Step 4: Simplify right side
    492,359.90x = 265,169,784,380.24
  5. Step 5: Solve for x
    x = 265,169,784,380.24/492,359.90
  6. Step 6: Final answer
    x = 538,569.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.