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Finding the Fourth Proportional to 1,249,610,113.76, 1,724,475,957.36 and 713,832,702.89

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Solution

The fourth proportional to 1,249,610,113.76, 1,724,475,957.36 and 713,832,702.89 is: 985,097,127.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,610,113.76 : 1,724,475,957.36 = 713,832,702.89 : x
  2. Step 2: Convert to fraction form
    1,249,610,113.76/1,724,475,957.36 = 713,832,702.89/x
  3. Step 3: Cross multiply
    1,249,610,113.76x = 1,724,475,957.36 × 713,832,702.89
  4. Step 4: Simplify right side
    1,249,610,113.76x = 1,230,987,333,711,594,752
  5. Step 5: Solve for x
    x = 1,230,987,333,711,594,752/1,249,610,113.76
  6. Step 6: Final answer
    x = 985,097,127.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.