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Finding the Fourth Proportional to 977,186,497.80, 1,465,779,746.70 and 880,440,616.20

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Solution

The fourth proportional to 977,186,497.80, 1,465,779,746.70 and 880,440,616.20 is: 1,320,660,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,186,497.80 : 1,465,779,746.70 = 880,440,616.20 : x
  2. Step 2: Convert to fraction form
    977,186,497.80/1,465,779,746.70 = 880,440,616.20/x
  3. Step 3: Cross multiply
    977,186,497.80x = 1,465,779,746.70 × 880,440,616.20
  4. Step 4: Simplify right side
    977,186,497.80x = 1,290,532,023,398,028,032
  5. Step 5: Solve for x
    x = 1,290,532,023,398,028,032/977,186,497.80
  6. Step 6: Final answer
    x = 1,320,660,924.30

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