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Finding the Fourth Proportional to 520,527.50, 776,415.70 and 472,690.52

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Solution

The fourth proportional to 520,527.50, 776,415.70 and 472,690.52 is: 705,062.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,527.50 : 776,415.70 = 472,690.52 : x
  2. Step 2: Convert to fraction form
    520,527.50/776,415.70 = 472,690.52/x
  3. Step 3: Cross multiply
    520,527.50x = 776,415.70 × 472,690.52
  4. Step 4: Simplify right side
    520,527.50x = 367,004,340,969.16
  5. Step 5: Solve for x
    x = 367,004,340,969.16/520,527.50
  6. Step 6: Final answer
    x = 705,062.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.