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Finding the Fourth Proportional to 867,618.70, 1,301,233.65 and 570,186.70

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Solution

The fourth proportional to 867,618.70, 1,301,233.65 and 570,186.70 is: 855,152.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,618.70 : 1,301,233.65 = 570,186.70 : x
  2. Step 2: Convert to fraction form
    867,618.70/1,301,233.65 = 570,186.70/x
  3. Step 3: Cross multiply
    867,618.70x = 1,301,233.65 × 570,186.70
  4. Step 4: Simplify right side
    867,618.70x = 741,946,120,822.46
  5. Step 5: Solve for x
    x = 741,946,120,822.46/867,618.70
  6. Step 6: Final answer
    x = 855,152.29

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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.