Home / 630,006.43-869,377.38-358,038.40

Finding the Fourth Proportional to 630,006.43, 869,377.38 and 358,038.40

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Solution

The fourth proportional to 630,006.43, 869,377.38 and 358,038.40 is: 494,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,006.43 : 869,377.38 = 358,038.40 : x
  2. Step 2: Convert to fraction form
    630,006.43/869,377.38 = 358,038.40/x
  3. Step 3: Cross multiply
    630,006.43x = 869,377.38 × 358,038.40
  4. Step 4: Simplify right side
    630,006.43x = 311,270,486,131.39
  5. Step 5: Solve for x
    x = 311,270,486,131.39/630,006.43
  6. Step 6: Final answer
    x = 494,075.09

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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.