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Finding the Fourth Proportional to 368,045.90, 552,068.85 and 210,290.30

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Solution

The fourth proportional to 368,045.90, 552,068.85 and 210,290.30 is: 315,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,045.90 : 552,068.85 = 210,290.30 : x
  2. Step 2: Convert to fraction form
    368,045.90/552,068.85 = 210,290.30/x
  3. Step 3: Cross multiply
    368,045.90x = 552,068.85 × 210,290.30
  4. Step 4: Simplify right side
    368,045.90x = 116,094,724,087.16
  5. Step 5: Solve for x
    x = 116,094,724,087.16/368,045.90
  6. Step 6: Final answer
    x = 315,435.45

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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.