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Finding the Fourth Proportional to 630,527.37, 870,101.40 and 358,557.51

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Solution

The fourth proportional to 630,527.37, 870,101.40 and 358,557.51 is: 494,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,527.37 : 870,101.40 = 358,557.51 : x
  2. Step 2: Convert to fraction form
    630,527.37/870,101.40 = 358,557.51/x
  3. Step 3: Cross multiply
    630,527.37x = 870,101.40 × 358,557.51
  4. Step 4: Simplify right side
    630,527.37x = 311,981,391,431.51
  5. Step 5: Solve for x
    x = 311,981,391,431.51/630,527.37
  6. Step 6: Final answer
    x = 494,794.37

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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.