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Finding the Fourth Proportional to 264,638.10, 396,957.15 and 260,030.10

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Solution

The fourth proportional to 264,638.10, 396,957.15 and 260,030.10 is: 390,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,638.10 : 396,957.15 = 260,030.10 : x
  2. Step 2: Convert to fraction form
    264,638.10/396,957.15 = 260,030.10/x
  3. Step 3: Cross multiply
    264,638.10x = 396,957.15 × 260,030.10
  4. Step 4: Simplify right side
    264,638.10x = 103,220,807,410.22
  5. Step 5: Solve for x
    x = 103,220,807,410.22/264,638.10
  6. Step 6: Final answer
    x = 390,045.15

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1.5x scale

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.