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Finding the Fourth Proportional to 489,897.60, 734,846.40 and 174,710.40

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Solution

The fourth proportional to 489,897.60, 734,846.40 and 174,710.40 is: 262,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,897.60 : 734,846.40 = 174,710.40 : x
  2. Step 2: Convert to fraction form
    489,897.60/734,846.40 = 174,710.40/x
  3. Step 3: Cross multiply
    489,897.60x = 734,846.40 × 174,710.40
  4. Step 4: Simplify right side
    489,897.60x = 128,385,308,482.56
  5. Step 5: Solve for x
    x = 128,385,308,482.56/489,897.60
  6. Step 6: Final answer
    x = 262,065.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.