Home / 526,547.40-789,821.10-290,351.40

Finding the Fourth Proportional to 526,547.40, 789,821.10 and 290,351.40

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Solution

The fourth proportional to 526,547.40, 789,821.10 and 290,351.40 is: 435,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,547.40 : 789,821.10 = 290,351.40 : x
  2. Step 2: Convert to fraction form
    526,547.40/789,821.10 = 290,351.40/x
  3. Step 3: Cross multiply
    526,547.40x = 789,821.10 × 290,351.40
  4. Step 4: Simplify right side
    526,547.40x = 229,325,662,134.54
  5. Step 5: Solve for x
    x = 229,325,662,134.54/526,547.40
  6. Step 6: Final answer
    x = 435,527.10

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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.