Home / 630,526.14-870,145.20-358,633.17

Finding the Fourth Proportional to 630,526.14, 870,145.20 and 358,633.17

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Solution

The fourth proportional to 630,526.14, 870,145.20 and 358,633.17 is: 494,924.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,526.14 : 870,145.20 = 358,633.17 : x
  2. Step 2: Convert to fraction form
    630,526.14/870,145.20 = 358,633.17/x
  3. Step 3: Cross multiply
    630,526.14x = 870,145.20 × 358,633.17
  4. Step 4: Simplify right side
    630,526.14x = 312,062,931,436.28
  5. Step 5: Solve for x
    x = 312,062,931,436.28/630,526.14
  6. Step 6: Final answer
    x = 494,924.65

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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.