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Finding the Fourth Proportional to 922,802.10, 1,384,203.15 and 424,166.10

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Solution

The fourth proportional to 922,802.10, 1,384,203.15 and 424,166.10 is: 636,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,802.10 : 1,384,203.15 = 424,166.10 : x
  2. Step 2: Convert to fraction form
    922,802.10/1,384,203.15 = 424,166.10/x
  3. Step 3: Cross multiply
    922,802.10x = 1,384,203.15 × 424,166.10
  4. Step 4: Simplify right side
    922,802.10x = 587,132,051,743.22
  5. Step 5: Solve for x
    x = 587,132,051,743.22/922,802.10
  6. Step 6: Final answer
    x = 636,249.15

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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.