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Finding the Fourth Proportional to 526,779.05, 726,957 and 285,061.60

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Solution

The fourth proportional to 526,779.05, 726,957 and 285,061.60 is: 393,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,779.05 : 726,957 = 285,061.60 : x
  2. Step 2: Convert to fraction form
    526,779.05/726,957 = 285,061.60/x
  3. Step 3: Cross multiply
    526,779.05x = 726,957 × 285,061.60
  4. Step 4: Simplify right side
    526,779.05x = 207,227,521,916.42
  5. Step 5: Solve for x
    x = 207,227,521,916.42/526,779.05
  6. Step 6: Final answer
    x = 393,386.04

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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.