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Finding the Fourth Proportional to 885,736,219.70, 1,328,604,329.55 and 880,634,386.10

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Solution

The fourth proportional to 885,736,219.70, 1,328,604,329.55 and 880,634,386.10 is: 1,320,951,579.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,219.70 : 1,328,604,329.55 = 880,634,386.10 : x
  2. Step 2: Convert to fraction form
    885,736,219.70/1,328,604,329.55 = 880,634,386.10/x
  3. Step 3: Cross multiply
    885,736,219.70x = 1,328,604,329.55 × 880,634,386.10
  4. Step 4: Simplify right side
    885,736,219.70x = 1,170,014,658,123,066,368
  5. Step 5: Solve for x
    x = 1,170,014,658,123,066,368/885,736,219.70
  6. Step 6: Final answer
    x = 1,320,951,579.15

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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.