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Finding the Fourth Proportional to 742,232.58, 1,024,281.03 and 402,700.86

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Solution

The fourth proportional to 742,232.58, 1,024,281.03 and 402,700.86 is: 555,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,232.58 : 1,024,281.03 = 402,700.86 : x
  2. Step 2: Convert to fraction form
    742,232.58/1,024,281.03 = 402,700.86/x
  3. Step 3: Cross multiply
    742,232.58x = 1,024,281.03 × 402,700.86
  4. Step 4: Simplify right side
    742,232.58x = 412,478,851,662.69
  5. Step 5: Solve for x
    x = 412,478,851,662.69/742,232.58
  6. Step 6: Final answer
    x = 555,727.22

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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.