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Finding the Fourth Proportional to 316,746.36, 474,015.05 and 259,154.67

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Solution

The fourth proportional to 316,746.36, 474,015.05 and 259,154.67 is: 387,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,746.36 : 474,015.05 = 259,154.67 : x
  2. Step 2: Convert to fraction form
    316,746.36/474,015.05 = 259,154.67/x
  3. Step 3: Cross multiply
    316,746.36x = 474,015.05 × 259,154.67
  4. Step 4: Simplify right side
    316,746.36x = 122,843,216,769.14
  5. Step 5: Solve for x
    x = 122,843,216,769.14/316,746.36
  6. Step 6: Final answer
    x = 387,828.35

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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.