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Finding the Fourth Proportional to 249,643.60, 374,465.40 and 193,656.40

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Solution

The fourth proportional to 249,643.60, 374,465.40 and 193,656.40 is: 290,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,643.60 : 374,465.40 = 193,656.40 : x
  2. Step 2: Convert to fraction form
    249,643.60/374,465.40 = 193,656.40/x
  3. Step 3: Cross multiply
    249,643.60x = 374,465.40 × 193,656.40
  4. Step 4: Simplify right side
    249,643.60x = 72,517,621,288.56
  5. Step 5: Solve for x
    x = 72,517,621,288.56/249,643.60
  6. Step 6: Final answer
    x = 290,484.60

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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.