Home / 540,734.10-811,101.15-260,798.10

Finding the Fourth Proportional to 540,734.10, 811,101.15 and 260,798.10

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Solution

The fourth proportional to 540,734.10, 811,101.15 and 260,798.10 is: 391,197.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,734.10 : 811,101.15 = 260,798.10 : x
  2. Step 2: Convert to fraction form
    540,734.10/811,101.15 = 260,798.10/x
  3. Step 3: Cross multiply
    540,734.10x = 811,101.15 × 260,798.10
  4. Step 4: Simplify right side
    540,734.10x = 211,533,638,827.82
  5. Step 5: Solve for x
    x = 211,533,638,827.82/540,734.10
  6. Step 6: Final answer
    x = 391,197.15

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Half scale
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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.