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Finding the Fourth Proportional to 691,354.60, 954,509.70 and 564,332.20

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Solution

The fourth proportional to 691,354.60, 954,509.70 and 564,332.20 is: 779,137.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,354.60 : 954,509.70 = 564,332.20 : x
  2. Step 2: Convert to fraction form
    691,354.60/954,509.70 = 564,332.20/x
  3. Step 3: Cross multiply
    691,354.60x = 954,509.70 × 564,332.20
  4. Step 4: Simplify right side
    691,354.60x = 538,660,558,922.34
  5. Step 5: Solve for x
    x = 538,660,558,922.34/691,354.60
  6. Step 6: Final answer
    x = 779,137.88

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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.