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Finding the Fourth Proportional to 259,312.10, 388,968.15 and 62,320.10

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Solution

The fourth proportional to 259,312.10, 388,968.15 and 62,320.10 is: 93,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,312.10 : 388,968.15 = 62,320.10 : x
  2. Step 2: Convert to fraction form
    259,312.10/388,968.15 = 62,320.10/x
  3. Step 3: Cross multiply
    259,312.10x = 388,968.15 × 62,320.10
  4. Step 4: Simplify right side
    259,312.10x = 24,240,534,004.82
  5. Step 5: Solve for x
    x = 24,240,534,004.82/259,312.10
  6. Step 6: Final answer
    x = 93,480.15

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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.