Home / 630,228.40-869,788.71-358,337.02

Finding the Fourth Proportional to 630,228.40, 869,788.71 and 358,337.02

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Solution

The fourth proportional to 630,228.40, 869,788.71 and 358,337.02 is: 494,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,228.40 : 869,788.71 = 358,337.02 : x
  2. Step 2: Convert to fraction form
    630,228.40/869,788.71 = 358,337.02/x
  3. Step 3: Cross multiply
    630,228.40x = 869,788.71 × 358,337.02
  4. Step 4: Simplify right side
    630,228.40x = 311,677,494,371.04
  5. Step 5: Solve for x
    x = 311,677,494,371.04/630,228.40
  6. Step 6: Final answer
    x = 494,546.89

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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.