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Finding the Fourth Proportional to 504,117.30, 756,175.95 and 130,140.30

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Solution

The fourth proportional to 504,117.30, 756,175.95 and 130,140.30 is: 195,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,117.30 : 756,175.95 = 130,140.30 : x
  2. Step 2: Convert to fraction form
    504,117.30/756,175.95 = 130,140.30/x
  3. Step 3: Cross multiply
    504,117.30x = 756,175.95 × 130,140.30
  4. Step 4: Simplify right side
    504,117.30x = 98,408,964,985.79
  5. Step 5: Solve for x
    x = 98,408,964,985.79/504,117.30
  6. Step 6: Final answer
    x = 195,210.45

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Double scale
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Similar ratio
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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.