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Finding the Fourth Proportional to 710,054.15, 979,225.68 and 555,025.92

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Solution

The fourth proportional to 710,054.15, 979,225.68 and 555,025.92 is: 765,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,054.15 : 979,225.68 = 555,025.92 : x
  2. Step 2: Convert to fraction form
    710,054.15/979,225.68 = 555,025.92/x
  3. Step 3: Cross multiply
    710,054.15x = 979,225.68 × 555,025.92
  4. Step 4: Simplify right side
    710,054.15x = 543,495,636,286.01
  5. Step 5: Solve for x
    x = 543,495,636,286.01/710,054.15
  6. Step 6: Final answer
    x = 765,428.43

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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.