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Finding the Fourth Proportional to 358,950.15, 495,354.54 and 197,810.97

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Solution

The fourth proportional to 358,950.15, 495,354.54 and 197,810.97 is: 272,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,950.15 : 495,354.54 = 197,810.97 : x
  2. Step 2: Convert to fraction form
    358,950.15/495,354.54 = 197,810.97/x
  3. Step 3: Cross multiply
    358,950.15x = 495,354.54 × 197,810.97
  4. Step 4: Simplify right side
    358,950.15x = 97,986,562,051.30
  5. Step 5: Solve for x
    x = 97,986,562,051.30/358,950.15
  6. Step 6: Final answer
    x = 272,980.98

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1.5x scale

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.