Home / 880,713.14-1,215,459.09-498,807.86

Finding the Fourth Proportional to 880,713.14, 1,215,459.09 and 498,807.86

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Solution

The fourth proportional to 880,713.14, 1,215,459.09 and 498,807.86 is: 688,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,713.14 : 1,215,459.09 = 498,807.86 : x
  2. Step 2: Convert to fraction form
    880,713.14/1,215,459.09 = 498,807.86/x
  3. Step 3: Cross multiply
    880,713.14x = 1,215,459.09 × 498,807.86
  4. Step 4: Simplify right side
    880,713.14x = 606,280,547,600.45
  5. Step 5: Solve for x
    x = 606,280,547,600.45/880,713.14
  6. Step 6: Final answer
    x = 688,397.30

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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.