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Finding the Fourth Proportional to 369,430.60, 554,016.30 and 191,878.60

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Solution

The fourth proportional to 369,430.60, 554,016.30 and 191,878.60 is: 287,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,430.60 : 554,016.30 = 191,878.60 : x
  2. Step 2: Convert to fraction form
    369,430.60/554,016.30 = 191,878.60/x
  3. Step 3: Cross multiply
    369,430.60x = 554,016.30 × 191,878.60
  4. Step 4: Simplify right side
    369,430.60x = 106,303,872,021.18
  5. Step 5: Solve for x
    x = 106,303,872,021.18/369,430.60
  6. Step 6: Final answer
    x = 287,750.59

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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.