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Finding the Fourth Proportional to 761,613.14, 1,051,019.60 and 417,468.18

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Solution

The fourth proportional to 761,613.14, 1,051,019.60 and 417,468.18 is: 576,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,613.14 : 1,051,019.60 = 417,468.18 : x
  2. Step 2: Convert to fraction form
    761,613.14/1,051,019.60 = 417,468.18/x
  3. Step 3: Cross multiply
    761,613.14x = 1,051,019.60 × 417,468.18
  4. Step 4: Simplify right side
    761,613.14x = 438,767,239,556.33
  5. Step 5: Solve for x
    x = 438,767,239,556.33/761,613.14
  6. Step 6: Final answer
    x = 576,102.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.