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Finding the Fourth Proportional to 370,947.40, 556,479 and 118,284.52

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Solution

The fourth proportional to 370,947.40, 556,479 and 118,284.52 is: 177,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,947.40 : 556,479 = 118,284.52 : x
  2. Step 2: Convert to fraction form
    370,947.40/556,479 = 118,284.52/x
  3. Step 3: Cross multiply
    370,947.40x = 556,479 × 118,284.52
  4. Step 4: Simplify right side
    370,947.40x = 65,822,851,405.08
  5. Step 5: Solve for x
    x = 65,822,851,405.08/370,947.40
  6. Step 6: Final answer
    x = 177,445.24

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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.