Home / 1,226,793.60-1,840,190.40-385,430.40

Finding the Fourth Proportional to 1,226,793.60, 1,840,190.40 and 385,430.40

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Solution

The fourth proportional to 1,226,793.60, 1,840,190.40 and 385,430.40 is: 578,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,793.60 : 1,840,190.40 = 385,430.40 : x
  2. Step 2: Convert to fraction form
    1,226,793.60/1,840,190.40 = 385,430.40/x
  3. Step 3: Cross multiply
    1,226,793.60x = 1,840,190.40 × 385,430.40
  4. Step 4: Simplify right side
    1,226,793.60x = 709,265,321,948.16
  5. Step 5: Solve for x
    x = 709,265,321,948.16/1,226,793.60
  6. Step 6: Final answer
    x = 578,145.60

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Double scale
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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.