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Finding the Fourth Proportional to 346,504.48, 478,176.24 and 187,528.48

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Solution

The fourth proportional to 346,504.48, 478,176.24 and 187,528.48 is: 258,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,504.48 : 478,176.24 = 187,528.48 : x
  2. Step 2: Convert to fraction form
    346,504.48/478,176.24 = 187,528.48/x
  3. Step 3: Cross multiply
    346,504.48x = 478,176.24 × 187,528.48
  4. Step 4: Simplify right side
    346,504.48x = 89,671,663,459.32
  5. Step 5: Solve for x
    x = 89,671,663,459.32/346,504.48
  6. Step 6: Final answer
    x = 258,789.33

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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.