Home / 688,070.72-949,561.79-382,152.82

Finding the Fourth Proportional to 688,070.72, 949,561.79 and 382,152.82

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Solution

The fourth proportional to 688,070.72, 949,561.79 and 382,152.82 is: 527,384.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,070.72 : 949,561.79 = 382,152.82 : x
  2. Step 2: Convert to fraction form
    688,070.72/949,561.79 = 382,152.82/x
  3. Step 3: Cross multiply
    688,070.72x = 949,561.79 × 382,152.82
  4. Step 4: Simplify right side
    688,070.72x = 362,877,715,812.75
  5. Step 5: Solve for x
    x = 362,877,715,812.75/688,070.72
  6. Step 6: Final answer
    x = 527,384.33

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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.