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Finding the Fourth Proportional to 326,075.60, 489,113.40 and 326,075.60

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Solution

The fourth proportional to 326,075.60, 489,113.40 and 326,075.60 is: 489,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,075.60 : 489,113.40 = 326,075.60 : x
  2. Step 2: Convert to fraction form
    326,075.60/489,113.40 = 326,075.60/x
  3. Step 3: Cross multiply
    326,075.60x = 489,113.40 × 326,075.60
  4. Step 4: Simplify right side
    326,075.60x = 159,487,945,373.04
  5. Step 5: Solve for x
    x = 159,487,945,373.04/326,075.60
  6. Step 6: Final answer
    x = 489,113.40

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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.