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Finding the Fourth Proportional to 982,224,281.60, 1,473,336,422.40 and 672,287,890.40

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Solution

The fourth proportional to 982,224,281.60, 1,473,336,422.40 and 672,287,890.40 is: 1,008,431,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,224,281.60 : 1,473,336,422.40 = 672,287,890.40 : x
  2. Step 2: Convert to fraction form
    982,224,281.60/1,473,336,422.40 = 672,287,890.40/x
  3. Step 3: Cross multiply
    982,224,281.60x = 1,473,336,422.40 × 672,287,890.40
  4. Step 4: Simplify right side
    982,224,281.60x = 990,506,235,264,779,392
  5. Step 5: Solve for x
    x = 990,506,235,264,779,392/982,224,281.60
  6. Step 6: Final answer
    x = 1,008,431,835.60

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1.5x scale

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.