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Finding the Fourth Proportional to 398,187.04, 597,073.20 and 117,666.40

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Solution

The fourth proportional to 398,187.04, 597,073.20 and 117,666.40 is: 176,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,187.04 : 597,073.20 = 117,666.40 : x
  2. Step 2: Convert to fraction form
    398,187.04/597,073.20 = 117,666.40/x
  3. Step 3: Cross multiply
    398,187.04x = 597,073.20 × 117,666.40
  4. Step 4: Simplify right side
    398,187.04x = 70,255,453,980.48
  5. Step 5: Solve for x
    x = 70,255,453,980.48/398,187.04
  6. Step 6: Final answer
    x = 176,438.32

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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.