Home / 676,824.40-934,117.14-390,288.52

Finding the Fourth Proportional to 676,824.40, 934,117.14 and 390,288.52

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Solution

The fourth proportional to 676,824.40, 934,117.14 and 390,288.52 is: 538,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,824.40 : 934,117.14 = 390,288.52 : x
  2. Step 2: Convert to fraction form
    676,824.40/934,117.14 = 390,288.52/x
  3. Step 3: Cross multiply
    676,824.40x = 934,117.14 × 390,288.52
  4. Step 4: Simplify right side
    676,824.40x = 364,575,196,077.23
  5. Step 5: Solve for x
    x = 364,575,196,077.23/676,824.40
  6. Step 6: Final answer
    x = 538,655.52

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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.