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Finding the Fourth Proportional to 535,831.76, 740,061.52 and 352,888.12

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Solution

The fourth proportional to 535,831.76, 740,061.52 and 352,888.12 is: 487,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,831.76 : 740,061.52 = 352,888.12 : x
  2. Step 2: Convert to fraction form
    535,831.76/740,061.52 = 352,888.12/x
  3. Step 3: Cross multiply
    535,831.76x = 740,061.52 × 352,888.12
  4. Step 4: Simplify right side
    535,831.76x = 261,158,918,477.14
  5. Step 5: Solve for x
    x = 261,158,918,477.14/535,831.76
  6. Step 6: Final answer
    x = 487,389.77

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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.