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Finding the Fourth Proportional to 650,957.20, 977,011.80 and 384,384.40

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Solution

The fourth proportional to 650,957.20, 977,011.80 and 384,384.40 is: 576,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,957.20 : 977,011.80 = 384,384.40 : x
  2. Step 2: Convert to fraction form
    650,957.20/977,011.80 = 384,384.40/x
  3. Step 3: Cross multiply
    650,957.20x = 977,011.80 × 384,384.40
  4. Step 4: Simplify right side
    650,957.20x = 375,548,094,535.92
  5. Step 5: Solve for x
    x = 375,548,094,535.92/650,957.20
  6. Step 6: Final answer
    x = 576,916.72

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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.