Home / 525,821.68-788,731.92-126,462.16

Finding the Fourth Proportional to 525,821.68, 788,731.92 and 126,462.16

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Solution

The fourth proportional to 525,821.68, 788,731.92 and 126,462.16 is: 189,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,821.68 : 788,731.92 = 126,462.16 : x
  2. Step 2: Convert to fraction form
    525,821.68/788,731.92 = 126,462.16/x
  3. Step 3: Cross multiply
    525,821.68x = 788,731.92 × 126,462.16
  4. Step 4: Simplify right side
    525,821.68x = 99,744,742,264.15
  5. Step 5: Solve for x
    x = 99,744,742,264.15/525,821.68
  6. Step 6: Final answer
    x = 189,693.10

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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.