Home / 833,111.10-1,249,666.65-768,157.20

Finding the Fourth Proportional to 833,111.10, 1,249,666.65 and 768,157.20

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Solution

The fourth proportional to 833,111.10, 1,249,666.65 and 768,157.20 is: 1,152,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    833,111.10 : 1,249,666.65 = 768,157.20 : x
  2. Step 2: Convert to fraction form
    833,111.10/1,249,666.65 = 768,157.20/x
  3. Step 3: Cross multiply
    833,111.10x = 1,249,666.65 × 768,157.20
  4. Step 4: Simplify right side
    833,111.10x = 959,940,434,797.38
  5. Step 5: Solve for x
    x = 959,940,434,797.38/833,111.10
  6. Step 6: Final answer
    x = 1,152,235.80

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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.