Home / 1,430,105.28-2,145,130.11-577,154.22

Finding the Fourth Proportional to 1,430,105.28, 2,145,130.11 and 577,154.22

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Solution

The fourth proportional to 1,430,105.28, 2,145,130.11 and 577,154.22 is: 865,720.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,105.28 : 2,145,130.11 = 577,154.22 : x
  2. Step 2: Convert to fraction form
    1,430,105.28/2,145,130.11 = 577,154.22/x
  3. Step 3: Cross multiply
    1,430,105.28x = 2,145,130.11 × 577,154.22
  4. Step 4: Simplify right side
    1,430,105.28x = 1,238,070,895,435.56
  5. Step 5: Solve for x
    x = 1,238,070,895,435.56/1,430,105.28
  6. Step 6: Final answer
    x = 865,720.11

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Double scale
Find fourth proportional to 1,430,106.28, 2,145,131.61 and 577,155.22
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.