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Finding the Fourth Proportional to 459,417.60, 633,951.36 and 258,209.28

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Solution

The fourth proportional to 459,417.60, 633,951.36 and 258,209.28 is: 356,303.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,417.60 : 633,951.36 = 258,209.28 : x
  2. Step 2: Convert to fraction form
    459,417.60/633,951.36 = 258,209.28/x
  3. Step 3: Cross multiply
    459,417.60x = 633,951.36 × 258,209.28
  4. Step 4: Simplify right side
    459,417.60x = 163,692,124,220.62
  5. Step 5: Solve for x
    x = 163,692,124,220.62/459,417.60
  6. Step 6: Final answer
    x = 356,303.56

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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.