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Finding the Fourth Proportional to 539,208.85, 808,813.28 and 532,210.45

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Solution

The fourth proportional to 539,208.85, 808,813.28 and 532,210.45 is: 798,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,208.85 : 808,813.28 = 532,210.45 : x
  2. Step 2: Convert to fraction form
    539,208.85/808,813.28 = 532,210.45/x
  3. Step 3: Cross multiply
    539,208.85x = 808,813.28 × 532,210.45
  4. Step 4: Simplify right side
    539,208.85x = 430,458,877,053.72
  5. Step 5: Solve for x
    x = 430,458,877,053.72/539,208.85
  6. Step 6: Final answer
    x = 798,315.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.