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Finding the Fourth Proportional to 526,779.30, 726,957.35 and 285,061.84

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Solution

The fourth proportional to 526,779.30, 726,957.35 and 285,061.84 is: 393,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,779.30 : 726,957.35 = 285,061.84 : x
  2. Step 2: Convert to fraction form
    526,779.30/726,957.35 = 285,061.84/x
  3. Step 3: Cross multiply
    526,779.30x = 726,957.35 × 285,061.84
  4. Step 4: Simplify right side
    526,779.30x = 207,227,799,792.52
  5. Step 5: Solve for x
    x = 207,227,799,792.52/526,779.30
  6. Step 6: Final answer
    x = 393,386.38

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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.