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Finding the Fourth Proportional to 282,726.48, 390,124.80 and 175,257.30

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Solution

The fourth proportional to 282,726.48, 390,124.80 and 175,257.30 is: 241,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,726.48 : 390,124.80 = 175,257.30 : x
  2. Step 2: Convert to fraction form
    282,726.48/390,124.80 = 175,257.30/x
  3. Step 3: Cross multiply
    282,726.48x = 390,124.80 × 175,257.30
  4. Step 4: Simplify right side
    282,726.48x = 68,372,219,111.04
  5. Step 5: Solve for x
    x = 68,372,219,111.04/282,726.48
  6. Step 6: Final answer
    x = 241,831.68

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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.