Home / 1,280,155.20-1,766,588.76-707,190

Finding the Fourth Proportional to 1,280,155.20, 1,766,588.76 and 707,190

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Solution

The fourth proportional to 1,280,155.20, 1,766,588.76 and 707,190 is: 975,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,155.20 : 1,766,588.76 = 707,190 : x
  2. Step 2: Convert to fraction form
    1,280,155.20/1,766,588.76 = 707,190/x
  3. Step 3: Cross multiply
    1,280,155.20x = 1,766,588.76 × 707,190
  4. Step 4: Simplify right side
    1,280,155.20x = 1,249,313,905,184.40
  5. Step 5: Solve for x
    x = 1,249,313,905,184.40/1,280,155.20
  6. Step 6: Final answer
    x = 975,908.16

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Double scale
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Similar ratio
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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.