Home / 811,405.60-1,119,362.64-525,017.94

Finding the Fourth Proportional to 811,405.60, 1,119,362.64 and 525,017.94

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Solution

The fourth proportional to 811,405.60, 1,119,362.64 and 525,017.94 is: 724,280.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,405.60 : 1,119,362.64 = 525,017.94 : x
  2. Step 2: Convert to fraction form
    811,405.60/1,119,362.64 = 525,017.94/x
  3. Step 3: Cross multiply
    811,405.60x = 1,119,362.64 × 525,017.94
  4. Step 4: Simplify right side
    811,405.60x = 587,685,467,365.76
  5. Step 5: Solve for x
    x = 587,685,467,365.76/811,405.60
  6. Step 6: Final answer
    x = 724,280.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.