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Finding the Fourth Proportional to 2,365,378.80, 3,319,928.40 and 2,365,378.80

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Solution

The fourth proportional to 2,365,378.80, 3,319,928.40 and 2,365,378.80 is: 3,319,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,365,378.80 : 3,319,928.40 = 2,365,378.80 : x
  2. Step 2: Convert to fraction form
    2,365,378.80/3,319,928.40 = 2,365,378.80/x
  3. Step 3: Cross multiply
    2,365,378.80x = 3,319,928.40 × 2,365,378.80
  4. Step 4: Simplify right side
    2,365,378.80x = 7,852,888,254,877.92
  5. Step 5: Solve for x
    x = 7,852,888,254,877.92/2,365,378.80
  6. Step 6: Final answer
    x = 3,319,928.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.