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Finding the Fourth Proportional to 670,924, 925,875.12 and 369,111.52

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Solution

The fourth proportional to 670,924, 925,875.12 and 369,111.52 is: 509,373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,924 : 925,875.12 = 369,111.52 : x
  2. Step 2: Convert to fraction form
    670,924/925,875.12 = 369,111.52/x
  3. Step 3: Cross multiply
    670,924x = 925,875.12 × 369,111.52
  4. Step 4: Simplify right side
    670,924x = 341,751,172,873.38
  5. Step 5: Solve for x
    x = 341,751,172,873.38/670,924
  6. Step 6: Final answer
    x = 509,373.90

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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.