Home / 630,124.61-869,537.39-358,154.75

Finding the Fourth Proportional to 630,124.61, 869,537.39 and 358,154.75

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Solution

The fourth proportional to 630,124.61, 869,537.39 and 358,154.75 is: 494,233.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,124.61 : 869,537.39 = 358,154.75 : x
  2. Step 2: Convert to fraction form
    630,124.61/869,537.39 = 358,154.75/x
  3. Step 3: Cross multiply
    630,124.61x = 869,537.39 × 358,154.75
  4. Step 4: Simplify right side
    630,124.61x = 311,428,946,531.10
  5. Step 5: Solve for x
    x = 311,428,946,531.10/630,124.61
  6. Step 6: Final answer
    x = 494,233.91

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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.