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Finding the Fourth Proportional to 415,554.84, 573,260.22 and 260,478.18

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Solution

The fourth proportional to 415,554.84, 573,260.22 and 260,478.18 is: 359,331.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,554.84 : 573,260.22 = 260,478.18 : x
  2. Step 2: Convert to fraction form
    415,554.84/573,260.22 = 260,478.18/x
  3. Step 3: Cross multiply
    415,554.84x = 573,260.22 × 260,478.18
  4. Step 4: Simplify right side
    415,554.84x = 149,321,778,772.00
  5. Step 5: Solve for x
    x = 149,321,778,772.00/415,554.84
  6. Step 6: Final answer
    x = 359,331.10

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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.