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Finding the Fourth Proportional to 340,831.41, 470,174.48 and 260,118.80

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Solution

The fourth proportional to 340,831.41, 470,174.48 and 260,118.80 is: 358,832.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,831.41 : 470,174.48 = 260,118.80 : x
  2. Step 2: Convert to fraction form
    340,831.41/470,174.48 = 260,118.80/x
  3. Step 3: Cross multiply
    340,831.41x = 470,174.48 × 260,118.80
  4. Step 4: Simplify right side
    340,831.41x = 122,301,221,528.22
  5. Step 5: Solve for x
    x = 122,301,221,528.22/340,831.41
  6. Step 6: Final answer
    x = 358,832.01

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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.