Home / 929,172.16-1,280,900.34-656,759.44

Finding the Fourth Proportional to 929,172.16, 1,280,900.34 and 656,759.44

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Solution

The fourth proportional to 929,172.16, 1,280,900.34 and 656,759.44 is: 905,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,172.16 : 1,280,900.34 = 656,759.44 : x
  2. Step 2: Convert to fraction form
    929,172.16/1,280,900.34 = 656,759.44/x
  3. Step 3: Cross multiply
    929,172.16x = 1,280,900.34 × 656,759.44
  4. Step 4: Simplify right side
    929,172.16x = 841,243,389,994.21
  5. Step 5: Solve for x
    x = 841,243,389,994.21/929,172.16
  6. Step 6: Final answer
    x = 905,368.70

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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.