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Finding the Fourth Proportional to 662,816.36, 914,395.62 and 447,878.12

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Solution

The fourth proportional to 662,816.36, 914,395.62 and 447,878.12 is: 617,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,816.36 : 914,395.62 = 447,878.12 : x
  2. Step 2: Convert to fraction form
    662,816.36/914,395.62 = 447,878.12/x
  3. Step 3: Cross multiply
    662,816.36x = 914,395.62 × 447,878.12
  4. Step 4: Simplify right side
    662,816.36x = 409,537,791,221.83
  5. Step 5: Solve for x
    x = 409,537,791,221.83/662,816.36
  6. Step 6: Final answer
    x = 617,875.20

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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.