Home / 634,814.28-875,979.90-380,158.92

Finding the Fourth Proportional to 634,814.28, 875,979.90 and 380,158.92

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Solution

The fourth proportional to 634,814.28, 875,979.90 and 380,158.92 is: 524,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,814.28 : 875,979.90 = 380,158.92 : x
  2. Step 2: Convert to fraction form
    634,814.28/875,979.90 = 380,158.92/x
  3. Step 3: Cross multiply
    634,814.28x = 875,979.90 × 380,158.92
  4. Step 4: Simplify right side
    634,814.28x = 333,011,572,725.71
  5. Step 5: Solve for x
    x = 333,011,572,725.71/634,814.28
  6. Step 6: Final answer
    x = 524,581.10

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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.