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Finding the Fourth Proportional to 572,705.40, 859,058.10 and 173,407.80

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Solution

The fourth proportional to 572,705.40, 859,058.10 and 173,407.80 is: 260,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,705.40 : 859,058.10 = 173,407.80 : x
  2. Step 2: Convert to fraction form
    572,705.40/859,058.10 = 173,407.80/x
  3. Step 3: Cross multiply
    572,705.40x = 859,058.10 × 173,407.80
  4. Step 4: Simplify right side
    572,705.40x = 148,967,375,193.18
  5. Step 5: Solve for x
    x = 148,967,375,193.18/572,705.40
  6. Step 6: Final answer
    x = 260,111.70

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Double scale
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Similar ratio
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1.5x scale

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.