Home / 906,564.61-1,251,088.91-498,697.77

Finding the Fourth Proportional to 906,564.61, 1,251,088.91 and 498,697.77

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Solution

The fourth proportional to 906,564.61, 1,251,088.91 and 498,697.77 is: 688,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,564.61 : 1,251,088.91 = 498,697.77 : x
  2. Step 2: Convert to fraction form
    906,564.61/1,251,088.91 = 498,697.77/x
  3. Step 3: Cross multiply
    906,564.61x = 1,251,088.91 × 498,697.77
  4. Step 4: Simplify right side
    906,564.61x = 623,915,249,488.73
  5. Step 5: Solve for x
    x = 623,915,249,488.73/906,564.61
  6. Step 6: Final answer
    x = 688,219.29

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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.