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Finding the Fourth Proportional to 470,643.60, 705,965.40 and 249,459.60

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Solution

The fourth proportional to 470,643.60, 705,965.40 and 249,459.60 is: 374,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,643.60 : 705,965.40 = 249,459.60 : x
  2. Step 2: Convert to fraction form
    470,643.60/705,965.40 = 249,459.60/x
  3. Step 3: Cross multiply
    470,643.60x = 705,965.40 × 249,459.60
  4. Step 4: Simplify right side
    470,643.60x = 176,109,846,297.84
  5. Step 5: Solve for x
    x = 176,109,846,297.84/470,643.60
  6. Step 6: Final answer
    x = 374,189.40

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Similar ratio
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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.