Home / 817,630.70-1,127,364.81-559,632.20

Finding the Fourth Proportional to 817,630.70, 1,127,364.81 and 559,632.20

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Solution

The fourth proportional to 817,630.70, 1,127,364.81 and 559,632.20 is: 771,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,630.70 : 1,127,364.81 = 559,632.20 : x
  2. Step 2: Convert to fraction form
    817,630.70/1,127,364.81 = 559,632.20/x
  3. Step 3: Cross multiply
    817,630.70x = 1,127,364.81 × 559,632.20
  4. Step 4: Simplify right side
    817,630.70x = 630,909,649,542.67
  5. Step 5: Solve for x
    x = 630,909,649,542.67/817,630.70
  6. Step 6: Final answer
    x = 771,631.55

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Double scale
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1.5x scale

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.