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Finding the Fourth Proportional to 646,713.80, 970,070.70 and 583,728.20

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Solution

The fourth proportional to 646,713.80, 970,070.70 and 583,728.20 is: 875,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,713.80 : 970,070.70 = 583,728.20 : x
  2. Step 2: Convert to fraction form
    646,713.80/970,070.70 = 583,728.20/x
  3. Step 3: Cross multiply
    646,713.80x = 970,070.70 × 583,728.20
  4. Step 4: Simplify right side
    646,713.80x = 566,257,623,583.74
  5. Step 5: Solve for x
    x = 566,257,623,583.74/646,713.80
  6. Step 6: Final answer
    x = 875,592.30

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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.