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Finding the Fourth Proportional to 670,235.88, 924,902.10 and 368,427.72

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Solution

The fourth proportional to 670,235.88, 924,902.10 and 368,427.72 is: 508,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,235.88 : 924,902.10 = 368,427.72 : x
  2. Step 2: Convert to fraction form
    670,235.88/924,902.10 = 368,427.72/x
  3. Step 3: Cross multiply
    670,235.88x = 924,902.10 × 368,427.72
  4. Step 4: Simplify right side
    670,235.88x = 340,759,571,926.21
  5. Step 5: Solve for x
    x = 340,759,571,926.21/670,235.88
  6. Step 6: Final answer
    x = 508,417.38

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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.