Home / 912,403.40-1,368,605.10-247,555.40

Finding the Fourth Proportional to 912,403.40, 1,368,605.10 and 247,555.40

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Solution

The fourth proportional to 912,403.40, 1,368,605.10 and 247,555.40 is: 371,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,403.40 : 1,368,605.10 = 247,555.40 : x
  2. Step 2: Convert to fraction form
    912,403.40/1,368,605.10 = 247,555.40/x
  3. Step 3: Cross multiply
    912,403.40x = 1,368,605.10 × 247,555.40
  4. Step 4: Simplify right side
    912,403.40x = 338,805,582,972.54
  5. Step 5: Solve for x
    x = 338,805,582,972.54/912,403.40
  6. Step 6: Final answer
    x = 371,333.10

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Half scale
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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.