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Finding the Fourth Proportional to 346,774.50, 478,587.75 and 195,881.22

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Solution

The fourth proportional to 346,774.50, 478,587.75 and 195,881.22 is: 270,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,774.50 : 478,587.75 = 195,881.22 : x
  2. Step 2: Convert to fraction form
    346,774.50/478,587.75 = 195,881.22/x
  3. Step 3: Cross multiply
    346,774.50x = 478,587.75 × 195,881.22
  4. Step 4: Simplify right side
    346,774.50x = 93,746,352,347.06
  5. Step 5: Solve for x
    x = 93,746,352,347.06/346,774.50
  6. Step 6: Final answer
    x = 270,338.08

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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.