Home / 1,121,188.55-1,680,782.93-411,051.11

Finding the Fourth Proportional to 1,121,188.55, 1,680,782.93 and 411,051.11

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Solution

The fourth proportional to 1,121,188.55, 1,680,782.93 and 411,051.11 is: 616,210.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,188.55 : 1,680,782.93 = 411,051.11 : x
  2. Step 2: Convert to fraction form
    1,121,188.55/1,680,782.93 = 411,051.11/x
  3. Step 3: Cross multiply
    1,121,188.55x = 1,680,782.93 × 411,051.11
  4. Step 4: Simplify right side
    1,121,188.55x = 690,887,686,990.30
  5. Step 5: Solve for x
    x = 690,887,686,990.30/1,121,188.55
  6. Step 6: Final answer
    x = 616,210.08

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Double scale
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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.