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Finding the Fourth Proportional to 526,779.55, 726,957.69 and 285,062.10

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Solution

The fourth proportional to 526,779.55, 726,957.69 and 285,062.10 is: 393,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,779.55 : 726,957.69 = 285,062.10 : x
  2. Step 2: Convert to fraction form
    526,779.55/726,957.69 = 285,062.10/x
  3. Step 3: Cross multiply
    526,779.55x = 726,957.69 × 285,062.10
  4. Step 4: Simplify right side
    526,779.55x = 207,228,085,722.55
  5. Step 5: Solve for x
    x = 207,228,085,722.55/526,779.55
  6. Step 6: Final answer
    x = 393,386.73

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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.