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Finding the Fourth Proportional to 583,442.70, 875,164.05 and 140,210.70

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Solution

The fourth proportional to 583,442.70, 875,164.05 and 140,210.70 is: 210,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,442.70 : 875,164.05 = 140,210.70 : x
  2. Step 2: Convert to fraction form
    583,442.70/875,164.05 = 140,210.70/x
  3. Step 3: Cross multiply
    583,442.70x = 875,164.05 × 140,210.70
  4. Step 4: Simplify right side
    583,442.70x = 122,707,364,065.34
  5. Step 5: Solve for x
    x = 122,707,364,065.34/583,442.70
  6. Step 6: Final answer
    x = 210,316.05

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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.