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Finding the Fourth Proportional to 519,386.40, 716,301.45 and 366,154.20

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Solution

The fourth proportional to 519,386.40, 716,301.45 and 366,154.20 is: 504,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,386.40 : 716,301.45 = 366,154.20 : x
  2. Step 2: Convert to fraction form
    519,386.40/716,301.45 = 366,154.20/x
  3. Step 3: Cross multiply
    519,386.40x = 716,301.45 × 366,154.20
  4. Step 4: Simplify right side
    519,386.40x = 262,276,784,383.59
  5. Step 5: Solve for x
    x = 262,276,784,383.59/519,386.40
  6. Step 6: Final answer
    x = 504,974.30

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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.