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Finding the Fourth Proportional to 622,085.40, 933,128.10 and 497,669.40

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Solution

The fourth proportional to 622,085.40, 933,128.10 and 497,669.40 is: 746,504.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,085.40 : 933,128.10 = 497,669.40 : x
  2. Step 2: Convert to fraction form
    622,085.40/933,128.10 = 497,669.40/x
  3. Step 3: Cross multiply
    622,085.40x = 933,128.10 × 497,669.40
  4. Step 4: Simplify right side
    622,085.40x = 464,389,301,650.14
  5. Step 5: Solve for x
    x = 464,389,301,650.14/622,085.40
  6. Step 6: Final answer
    x = 746,504.10

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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.