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Finding the Fourth Proportional to 697,643.60, 1,046,465.40 and 650,404.40

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Solution

The fourth proportional to 697,643.60, 1,046,465.40 and 650,404.40 is: 975,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,643.60 : 1,046,465.40 = 650,404.40 : x
  2. Step 2: Convert to fraction form
    697,643.60/1,046,465.40 = 650,404.40/x
  3. Step 3: Cross multiply
    697,643.60x = 1,046,465.40 × 650,404.40
  4. Step 4: Simplify right side
    697,643.60x = 680,625,700,607.76
  5. Step 5: Solve for x
    x = 680,625,700,607.76/697,643.60
  6. Step 6: Final answer
    x = 975,606.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.