Home / 696,050.11-960,575.51-390,132.10

Finding the Fourth Proportional to 696,050.11, 960,575.51 and 390,132.10

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Solution

The fourth proportional to 696,050.11, 960,575.51 and 390,132.10 is: 538,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,050.11 : 960,575.51 = 390,132.10 : x
  2. Step 2: Convert to fraction form
    696,050.11/960,575.51 = 390,132.10/x
  3. Step 3: Cross multiply
    696,050.11x = 960,575.51 × 390,132.10
  4. Step 4: Simplify right side
    696,050.11x = 374,751,335,503.19
  5. Step 5: Solve for x
    x = 374,751,335,503.19/696,050.11
  6. Step 6: Final answer
    x = 538,397.06

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.