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Finding the Fourth Proportional to 611,551,362.40, 858,590,554.40 and 611,551,362.40

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Solution

The fourth proportional to 611,551,362.40, 858,590,554.40 and 611,551,362.40 is: 858,590,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,551,362.40 : 858,590,554.40 = 611,551,362.40 : x
  2. Step 2: Convert to fraction form
    611,551,362.40/858,590,554.40 = 611,551,362.40/x
  3. Step 3: Cross multiply
    611,551,362.40x = 858,590,554.40 × 611,551,362.40
  4. Step 4: Simplify right side
    611,551,362.40x = 525,072,223,287,091,264
  5. Step 5: Solve for x
    x = 525,072,223,287,091,264/611,551,362.40
  6. Step 6: Final answer
    x = 858,590,554.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.