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Finding the Fourth Proportional to 692,250.80, 955,354.02 and 386,386.70

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Solution

The fourth proportional to 692,250.80, 955,354.02 and 386,386.70 is: 533,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,250.80 : 955,354.02 = 386,386.70 : x
  2. Step 2: Convert to fraction form
    692,250.80/955,354.02 = 386,386.70/x
  3. Step 3: Cross multiply
    692,250.80x = 955,354.02 × 386,386.70
  4. Step 4: Simplify right side
    692,250.80x = 369,136,082,342.76
  5. Step 5: Solve for x
    x = 369,136,082,342.76/692,250.80
  6. Step 6: Final answer
    x = 533,240.39

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Double scale
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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.