Home / 1,187,506.20-1,781,259.30-346,085.40

Finding the Fourth Proportional to 1,187,506.20, 1,781,259.30 and 346,085.40

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Solution

The fourth proportional to 1,187,506.20, 1,781,259.30 and 346,085.40 is: 519,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,506.20 : 1,781,259.30 = 346,085.40 : x
  2. Step 2: Convert to fraction form
    1,187,506.20/1,781,259.30 = 346,085.40/x
  3. Step 3: Cross multiply
    1,187,506.20x = 1,781,259.30 × 346,085.40
  4. Step 4: Simplify right side
    1,187,506.20x = 616,467,837,344.22
  5. Step 5: Solve for x
    x = 616,467,837,344.22/1,187,506.20
  6. Step 6: Final answer
    x = 519,128.10

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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.