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Finding the Fourth Proportional to 634,483.35, 875,643.21 and 348,059.25

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Solution

The fourth proportional to 634,483.35, 875,643.21 and 348,059.25 is: 480,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,483.35 : 875,643.21 = 348,059.25 : x
  2. Step 2: Convert to fraction form
    634,483.35/875,643.21 = 348,059.25/x
  3. Step 3: Cross multiply
    634,483.35x = 875,643.21 × 348,059.25
  4. Step 4: Simplify right side
    634,483.35x = 304,775,718,940.19
  5. Step 5: Solve for x
    x = 304,775,718,940.19/634,483.35
  6. Step 6: Final answer
    x = 480,352.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.