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Finding the Fourth Proportional to 434,417.60, 651,741.60 and 153,905.60

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Solution

The fourth proportional to 434,417.60, 651,741.60 and 153,905.60 is: 230,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,417.60 : 651,741.60 = 153,905.60 : x
  2. Step 2: Convert to fraction form
    434,417.60/651,741.60 = 153,905.60/x
  3. Step 3: Cross multiply
    434,417.60x = 651,741.60 × 153,905.60
  4. Step 4: Simplify right side
    434,417.60x = 100,306,681,992.96
  5. Step 5: Solve for x
    x = 100,306,681,992.96/434,417.60
  6. Step 6: Final answer
    x = 230,899.21

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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.