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Finding the Fourth Proportional to 520,528.50, 776,417.19 and 472,691.52

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Solution

The fourth proportional to 520,528.50, 776,417.19 and 472,691.52 is: 705,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,528.50 : 776,417.19 = 472,691.52 : x
  2. Step 2: Convert to fraction form
    520,528.50/776,417.19 = 472,691.52/x
  3. Step 3: Cross multiply
    520,528.50x = 776,417.19 × 472,691.52
  4. Step 4: Simplify right side
    520,528.50x = 367,005,821,695.23
  5. Step 5: Solve for x
    x = 367,005,821,695.23/520,528.50
  6. Step 6: Final answer
    x = 705,063.84

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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.