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Finding the Fourth Proportional to 696,595.68, 961,303.76 and 406,406.74

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Solution

The fourth proportional to 696,595.68, 961,303.76 and 406,406.74 is: 560,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,595.68 : 961,303.76 = 406,406.74 : x
  2. Step 2: Convert to fraction form
    696,595.68/961,303.76 = 406,406.74/x
  3. Step 3: Cross multiply
    696,595.68x = 961,303.76 × 406,406.74
  4. Step 4: Simplify right side
    696,595.68x = 390,680,327,251.34
  5. Step 5: Solve for x
    x = 390,680,327,251.34/696,595.68
  6. Step 6: Final answer
    x = 560,842.31

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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.