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Finding the Fourth Proportional to 314,444.60, 471,666.90 and 156,980.60

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Solution

The fourth proportional to 314,444.60, 471,666.90 and 156,980.60 is: 235,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,444.60 : 471,666.90 = 156,980.60 : x
  2. Step 2: Convert to fraction form
    314,444.60/471,666.90 = 156,980.60/x
  3. Step 3: Cross multiply
    314,444.60x = 471,666.90 × 156,980.60
  4. Step 4: Simplify right side
    314,444.60x = 74,042,552,962.14
  5. Step 5: Solve for x
    x = 74,042,552,962.14/314,444.60
  6. Step 6: Final answer
    x = 235,470.90

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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.