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Finding the Fourth Proportional to 314,966.00, 472,449.35 and 78,308.71

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Solution

The fourth proportional to 314,966.00, 472,449.35 and 78,308.71 is: 117,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,966.00 : 472,449.35 = 78,308.71 : x
  2. Step 2: Convert to fraction form
    314,966.00/472,449.35 = 78,308.71/x
  3. Step 3: Cross multiply
    314,966.00x = 472,449.35 × 78,308.71
  4. Step 4: Simplify right side
    314,966.00x = 36,996,898,153.49
  5. Step 5: Solve for x
    x = 36,996,898,153.49/314,966.00
  6. Step 6: Final answer
    x = 117,463.15

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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.