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Finding the Fourth Proportional to 565,903.65, 780,551.60 and 384,300.34

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Solution

The fourth proportional to 565,903.65, 780,551.60 and 384,300.34 is: 530,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,903.65 : 780,551.60 = 384,300.34 : x
  2. Step 2: Convert to fraction form
    565,903.65/780,551.60 = 384,300.34/x
  3. Step 3: Cross multiply
    565,903.65x = 780,551.60 × 384,300.34
  4. Step 4: Simplify right side
    565,903.65x = 299,966,245,267.54
  5. Step 5: Solve for x
    x = 299,966,245,267.54/565,903.65
  6. Step 6: Final answer
    x = 530,065.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.