Home / 631,865.55-947,798.33-392,717.10

Finding the Fourth Proportional to 631,865.55, 947,798.33 and 392,717.10

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Solution

The fourth proportional to 631,865.55, 947,798.33 and 392,717.10 is: 589,075.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,865.55 : 947,798.33 = 392,717.10 : x
  2. Step 2: Convert to fraction form
    631,865.55/947,798.33 = 392,717.10/x
  3. Step 3: Cross multiply
    631,865.55x = 947,798.33 × 392,717.10
  4. Step 4: Simplify right side
    631,865.55x = 372,216,609,578.86
  5. Step 5: Solve for x
    x = 372,216,609,578.86/631,865.55
  6. Step 6: Final answer
    x = 589,075.65

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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.