Home / 837,072.80-1,255,609.20-553,637.60

Finding the Fourth Proportional to 837,072.80, 1,255,609.20 and 553,637.60

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Solution

The fourth proportional to 837,072.80, 1,255,609.20 and 553,637.60 is: 830,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,072.80 : 1,255,609.20 = 553,637.60 : x
  2. Step 2: Convert to fraction form
    837,072.80/1,255,609.20 = 553,637.60/x
  3. Step 3: Cross multiply
    837,072.80x = 1,255,609.20 × 553,637.60
  4. Step 4: Simplify right side
    837,072.80x = 695,152,464,025.92
  5. Step 5: Solve for x
    x = 695,152,464,025.92/837,072.80
  6. Step 6: Final answer
    x = 830,456.40

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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.