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Finding the Fourth Proportional to 897,326,543.40, 1,345,989,815.10 and 897,326,543.40

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Solution

The fourth proportional to 897,326,543.40, 1,345,989,815.10 and 897,326,543.40 is: 1,345,989,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,326,543.40 : 1,345,989,815.10 = 897,326,543.40 : x
  2. Step 2: Convert to fraction form
    897,326,543.40/1,345,989,815.10 = 897,326,543.40/x
  3. Step 3: Cross multiply
    897,326,543.40x = 1,345,989,815.10 × 897,326,543.40
  4. Step 4: Simplify right side
    897,326,543.40x = 1,207,792,388,235,288,064
  5. Step 5: Solve for x
    x = 1,207,792,388,235,288,064/897,326,543.40
  6. Step 6: Final answer
    x = 1,345,989,815.10

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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.