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Finding the Fourth Proportional to 495,928.40, 742,337.40 and 355,960.40

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Solution

The fourth proportional to 495,928.40, 742,337.40 and 355,960.40 is: 532,824.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,928.40 : 742,337.40 = 355,960.40 : x
  2. Step 2: Convert to fraction form
    495,928.40/742,337.40 = 355,960.40/x
  3. Step 3: Cross multiply
    495,928.40x = 742,337.40 × 355,960.40
  4. Step 4: Simplify right side
    495,928.40x = 264,242,717,838.96
  5. Step 5: Solve for x
    x = 264,242,717,838.96/495,928.40
  6. Step 6: Final answer
    x = 532,824.33

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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.