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Finding the Fourth Proportional to 525,695.60, 788,543.40 and 170,721.20

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Solution

The fourth proportional to 525,695.60, 788,543.40 and 170,721.20 is: 256,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,695.60 : 788,543.40 = 170,721.20 : x
  2. Step 2: Convert to fraction form
    525,695.60/788,543.40 = 170,721.20/x
  3. Step 3: Cross multiply
    525,695.60x = 788,543.40 × 170,721.20
  4. Step 4: Simplify right side
    525,695.60x = 134,621,075,500.08
  5. Step 5: Solve for x
    x = 134,621,075,500.08/525,695.60
  6. Step 6: Final answer
    x = 256,081.80

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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.