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Finding the Fourth Proportional to 577,985.30, 866,977.95 and 508,001.30

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Solution

The fourth proportional to 577,985.30, 866,977.95 and 508,001.30 is: 762,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,985.30 : 866,977.95 = 508,001.30 : x
  2. Step 2: Convert to fraction form
    577,985.30/866,977.95 = 508,001.30/x
  3. Step 3: Cross multiply
    577,985.30x = 866,977.95 × 508,001.30
  4. Step 4: Simplify right side
    577,985.30x = 440,425,925,671.34
  5. Step 5: Solve for x
    x = 440,425,925,671.34/577,985.30
  6. Step 6: Final answer
    x = 762,001.95

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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.